To solve this question we have to make deduct these 2 years. 2111 minus 1990 will give the answer.
You are 121 years old.
(1452 months are passed.)
From 1990 to 2111 there are 121 years. If you want to learn your age in 2111 (born in 1990) your age is 121.
Let's see what will be your age if you born +1 or -1 from that date.