To solve this question we have to make deduct these 2 years. 2120 minus 1987 will give the answer.
You are 133 years old.
(1596 months are passed.)
From 1987 to 2120 there are 133 years. If you want to learn your age in 2120 (born in 1987) your age is 133.
Let's see what will be your age if you born +1 or -1 from that date.