Adding to 22100100 its reverse (100122), we get a palindrome (22200222).
It is a happy number.
It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.
It is an unprimeable number.
Almost surely, 222100100 is an apocalyptic number.
22100100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 22100100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36018528).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
22100100 is a wasteful number, since it uses less digits than its factorization.
22100100 is an odious number, because the sum of its binary digits is odd.
The square root of 22100100 is about 4701.0743452960. The cubic root of 22100100 is about 280.6282661082.
The spelling of 22100100 in words is "twenty-two million, one hundred thousand, one hundred".