Meaning of Numbers: The Number 1222
The possible meaning of the number 1222 in the Bible is unclear. It might be partly related to the Hebrew (Biblical) calendar and the Sabbatical year.
Biblical (Hebrew) civil year 1222 began at sunset on September 8 in 2540 B.C. which was the start of the Feast of Trumpets. The year ended at sunset on September 26 in 2539 B.C.
Entry number 1222 in Strong Concordance's definitions of Biblical Hebrew words is betsar. Found only in Job 36, it refers to gold when it is broken up.
Behold, God is mighty, yet He does not despise any; He is mighty in strength of understanding . . .
Will He esteem your riches? No, not gold (betsar), nor all the forces of strength can keep you from distress (Job 36:5, 19, HBFV).
Appearances of Number 1222
In 1222 B.C. a man named Ehud was a Judge over ancient Israel. He was the third Judge over God's people since its first, Joshua, began to serve in 1398 B.C.

Ehud, a rare left-handed warrior, was inspired by God inspired to defeat the King of Moab after he had oppressed Israel for eighteen years. Ehud would ultimately become Israel's longest serving judge by carrying out this responsibility for eighty years!
And Ehud came to him (the king of Moab). And he was sitting in the cool roof room which he had for himself alone. And Ehud said, "I have a message from God for you." And he rose out of his seat.
And Ehud put forth his left hand and took the dagger from his right thigh, and thrust it into his belly (Judges 3:20 - 21).
Entry number 1222 in Strong's definitions of Biblical Greek words is depou. This word, like the one mentioned above, occurs only once in the Bible. It means, in Hebrews 2, to assert or affirm something strongly.
But we see Jesus, who was made a little lower than the angels for the suffering of death . . . For verily (depou) he took not on him the nature of angels; but he took on him the seed of Abraham (Hebrews 2:9, 16, KJV).
Number 1222 and Sabbatical Years
God commanded ancient Israel to keep a Sabbatical year, also known as the land sabbath (Leviticus 25:2 - 6) or year of release (Deuteronomy 31:10). This year was the seventh in every seven-year cycle.
September 16 in 1222 B.C. (Tishri 1 on the Hebrew calendar) began a Sabbatical year. This special year ended at sunset on September 5 in 1221 B.C. This was the 26th Sabbatical since the children of Israel received their inheritance in the Promised Land in 1398 B.C.
Coincidently, sunset on September 7 in 1222 A.D. also began a Sabbatical year. This special year ended at sunset on August 27 in 1223 A.D. This was the 375th Sabbatical since the children of Israel received their inheritance in 1398 B.C.
More Info on Biblical Meaning of 1222
Hebrews 12:22 (1222) is the only time the Apostle Paul uses the word Sion (Zion), in his fourteen books, that does not quote a prophecy.
But you have come to Mount Sion (Zion), and to the city of the living God, heavenly Jerusalem; and to an innumerable company of angels (Hebrews 12:22).
There are no words in the Bible's original languages that are recorded exactly 1222 times.
1222 is equal to 2 x 13 x 47, all of which are prime numbers.