111213211143204 has 72 divisors (see below), whose sum is σ = 282964398887352. Its totient is φ = 36828678205440.

The previous prime is 111213211143197. The next prime is 111213211143289. The reversal of 111213211143204 is 402341112312111.

111213211143204 is a `hidden beast` number, since 1 + 1 + 1 + 2 + 1 + 321 + 1 + 14 + 320 + 4 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 58458991639104 + 52754219504100 = 7645848^2 + 7263210^2 .

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, 5825607 + ... + 16011374.

Almost surely, 2^{111213211143204} is an apocalyptic number.

It is an amenable number.

111213211143204 is an abundant number, since it is smaller than the sum of its proper divisors (171751187744148).

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

111213211143204 is a wasteful number, since it uses less digits than its factorization.

111213211143204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21837917 (or 21837912 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

Adding to 111213211143204 its reverse (402341112312111), we get a palindrome (513554323455315).

The spelling of 111213211143204 in words is "one hundred eleven trillion, two hundred thirteen billion, two hundred eleven million, one hundred forty-three thousand, two hundred four".