202112404400 has 30 divisors (see below), whose sum is σ = 485575052532. Its totient is φ = 80844961600.

The previous prime is 202112404397. The next prime is 202112404421. The reversal of 202112404400 is 4404211202.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 252640106 + ... + 252640905.

Almost surely, 2^202112404400 is an apocalyptic number.

202112404400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202112404400 is an abundant number, since it is smaller than the sum of its proper divisors (283462648132).

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

202112404400 is a wasteful number, since it uses less digits than its factorization.

202112404400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505281029 (or 505281018 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 202112404400 its reverse (4404211202), we get a palindrome (206516615602).

The spelling of 202112404400 in words is "two hundred two billion, one hundred twelve million, four hundred four thousand, four hundred".