204220112012 has 72 divisors (see below), whose sum is σ = 452704921200. Its totient is φ = 80057206656.

The previous prime is 204220111967. The next prime is 204220112027. The reversal of 204220112012 is 210211022402.

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, 837503 + ... + 1053494.

It is an arithmetic number, because the mean of its divisors is an integer number (6287568350).

Almost surely, 2^204220112012 is an apocalyptic number.

It is an amenable number.

204220112012 is an abundant number, since it is smaller than the sum of its proper divisors (248484809188).

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

204220112012 is a wasteful number, since it uses less digits than its factorization.

204220112012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1891063 (or 1891054 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 204220112012 its reverse (210211022402), we get a palindrome (414431134414).

The spelling of 204220112012 in words is "two hundred four billion, two hundred twenty million, one hundred twelve thousand, twelve".