100012122200 has 24 divisors (see below), whose sum is σ = 232528184580. Its totient is φ = 40004848800.

The previous prime is 100012122179. The next prime is 100012122209. The reversal of 100012122200 is 2221210001.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100012122209) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 250030106 + ... + 250030505.

Almost surely, 2^100012122200 is an apocalyptic number.

100012122200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100012122200 is an abundant number, since it is smaller than the sum of its proper divisors (132516062380).

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

100012122200 is a wasteful number, since it uses less digits than its factorization.

100012122200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500060627 (or 500060618 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 100012122200 its reverse (2221210001), we get a palindrome (102233332201).

The spelling of 100012122200 in words is "one hundred billion, twelve million, one hundred twenty-two thousand, two hundred".