How many people in Nineveh could not tell their right hand from their left?

Answer: More than 120,000

God asked Jonah if He should not care about Nineveh, with more than 120,000 people who could not tell right from left, and many cattle.

“So should I not care about the great city of Nineveh, which has more than 120,000 people who cannot tell their right hand from their left, and many cattle as well?””— Jonah 4:11 (BSB)