22122312100 has 72 divisors (see below), whose sum is σ = 54887806400. Its totient is φ = 7581409920.

The previous prime is 22122312097. The next prime is 22122312103. The reversal of 22122312100 is 121322122.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (22122312097) and next prime (22122312103).

It is not an unprimeable number, because it can be changed into a prime (22122312103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1952251 + ... + 1963549.

Almost surely, 2^22122312100 is an apocalyptic number.

22122312100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22122312100 is an abundant number, since it is smaller than the sum of its proper divisors (32765494300).

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

22122312100 is a wasteful number, since it uses less digits than its factorization.

22122312100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14117 (or 14110 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 22122312100 its reverse (121322122), we get a palindrome (22243634222).

The spelling of 22122312100 in words is "twenty-two billion, one hundred twenty-two million, three hundred twelve thousand, one hundred".