12111112200 has 96 divisors (see below), whose sum is σ = 40957601760. Its totient is φ = 2936025600.

The previous prime is 12111112177. The next prime is 12111112229. The reversal of 12111112200 is 221111121.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 910909 + ... + 924108.

It is an arithmetic number, because the mean of its divisors is an integer number (426641685).

Almost surely, 2^12111112200 is an apocalyptic number.

12111112200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12111112200 is an abundant number, since it is smaller than the sum of its proper divisors (28846489560).

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

12111112200 is a wasteful number, since it uses less digits than its factorization.

12111112200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1835047 (or 1835038 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 12111112200 its reverse (221111121), we get a palindrome (12332223321).

The spelling of 12111112200 in words is "twelve billion, one hundred eleven million, one hundred twelve thousand, two hundred".