22101122100 has 36 divisors (see below), whose sum is σ = 63945914144. Its totient is φ = 5893632480.

The previous prime is 22101122093. The next prime is 22101122117. The reversal of 22101122100 is 122110122.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36834904 + ... + 36835503.

Almost surely, 2^22101122100 is an apocalyptic number.

22101122100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22101122100 is an abundant number, since it is smaller than the sum of its proper divisors (41844792044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22101122100 is a wasteful number, since it uses less digits than its factorization.

22101122100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73670424 (or 73670417 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 22101122100 its reverse (122110122), we get a palindrome (22223232222).

The spelling of 22101122100 in words is "twenty-two billion, one hundred one million, one hundred twenty-two thousand, one hundred".