What does it mean that the last payment period of social security is 20220 1?

The latest expiration date of social security is 20220 1, that is, it will be paid in the current month, and the current social security payment is 1. The social security is calculated on a monthly basis, and it is paid in June 65438+1 October1and June 65438+1October 3 1, all of which are social security in June 65438+1October.