22200021112100 has 36 divisors (see below), whose sum is σ = 51879741648084. Its totient is φ = 8196930871680.

The previous prime is 22200021112043. The next prime is 22200021112109. The reversal of 22200021112100 is 121112000222.

It can be written as a sum of positive squares in 6 ways, for example, as 5953365762304 + 16246655349796 = 2439952^2 + 4030714^2 .

It is not an unprimeable number, because it can be changed into a prime (22200021112109) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8538468359 + ... + 8538470958.

It is an arithmetic number, because the mean of its divisors is an integer number (1441103934669).

Almost surely, 2^{22200021112100} is an apocalyptic number.

22200021112100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22200021112100 is an abundant number, since it is smaller than the sum of its proper divisors (29679720535984).

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

22200021112100 is a wasteful number, since it uses less digits than its factorization.

22200021112100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17076939344 (or 17076939337 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 22200021112100 its reverse (121112000222), we get a palindrome (22321133112322).

The spelling of 22200021112100 in words is "twenty-two trillion, two hundred billion, twenty-one million, one hundred twelve thousand, one hundred".