If I am thirty-two, I am the smallest and I am alone.
Twenty-two multiplied by four is twenty.
Eight, twelve and sixteen are my own.
If you can see me, we both have one of me.
If you don't have one of me, you can't see me.
HE has a lot of me and rides me worldwide.
What am I?
Hint 1: (more like a commentary)
I expected it'd be easier to try to make sense out of those numbers and arithmetics first.
You have one of me now because you can see this riddle.
HE is capitalized correctly, it's not He.