22101202221100 has 72 divisors (see below), whose sum is σ = 50046288895008. Its totient is φ = 8455862131200.

The previous prime is 22101202221071. The next prime is 22101202221149. The reversal of 22101202221100 is 112220210122.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 90131862 + ... + 90376738.

It is an arithmetic number, because the mean of its divisors is an integer number (695087345764).

Almost surely, 2^{22101202221100} is an apocalyptic number.

22101202221100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22101202221100 is an abundant number, since it is smaller than the sum of its proper divisors (27945086673908).

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

22101202221100 is a wasteful number, since it uses less digits than its factorization.

22101202221100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284155 (or 284148 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 22101202221100 its reverse (112220210122), we get a palindrome (22213422431222).

The spelling of 22101202221100 in words is "twenty-two trillion, one hundred one billion, two hundred two million, two hundred twenty-one thousand, one hundred".