22200012100 has 72 divisors (see below), whose sum is σ = 55601316288. Its totient is φ = 7536048000.

The previous prime is 22200012097. The next prime is 22200012103. The reversal of 22200012100 is 121000222.

It is an interprime number because it is at equal distance from previous prime (22200012097) and next prime (22200012103).

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (22200012103) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 86302 + ... + 227701.

It is an arithmetic number, because the mean of its divisors is an integer number (772240504).

Almost surely, 2^22200012100 is an apocalyptic number.

22200012100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22200012100 is an abundant number, since it is smaller than the sum of its proper divisors (33401304188).

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

22200012100 is a wasteful number, since it uses less digits than its factorization.

22200012100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314125 (or 314118 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 22200012100 its reverse (121000222), we get a palindrome (22321012322).

The spelling of 22200012100 in words is "twenty-two billion, two hundred million, twelve thousand, one hundred".