It depends when you are asking, the 22nd century starts in 2100
My 22nd century begins in about 2,090 years!
90 days
Emmett Louis Till was killed on November 22nd, 1955.
The years involved are important because some years will be a leap year. If the calculation does not include a leap year, then there are 234 days between, and including, September 1st, and April 22nd.
It was 3 days to the 22nd of May 2013 on the date the question was asked. It is 360 days to the 22nd of May 2014 on the day the question is being answered.
This is a variable number. You need to state a start and/or end date or time.
19 years.
33 years
100 years
12
0 years its in 38 days
38 Years
988