111211111200204 has 72 divisors (see below), whose sum is σ = 291773084475600. Its totient is φ = 37039296777984.

The previous prime is 111211111200199. The next prime is 111211111200281. The reversal of 111211111200204 is 402002111112111.

It is a super-2 number, since 2×111211111200204² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

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, 46792929 + ... + 49112120.

It is an arithmetic number, because the mean of its divisors is an integer number (4052403951050).

Almost surely, 2^{111211111200204} is an apocalyptic number.

It is an amenable number.

111211111200204 is an abundant number, since it is smaller than the sum of its proper divisors (180561973275396).

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

111211111200204 is a wasteful number, since it uses less digits than its factorization.

111211111200204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95906261 (or 95906247 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 111211111200204 its reverse (402002111112111), we get a palindrome (513213222312315).

The spelling of 111211111200204 in words is "one hundred eleven trillion, two hundred eleven billion, one hundred eleven million, two hundred thousand, two hundred four".