111112001200 has 30 divisors (see below), whose sum is σ = 266946583844. Its totient is φ = 44444800320.

The previous prime is 111112001191. The next prime is 111112001233. The reversal of 111112001200 is 2100211111.

It is a Harshad number since it is a multiple of its sum of digits (10).

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, 138889602 + ... + 138890401.

Almost surely, 2^111112001200 is an apocalyptic number.

111112001200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111112001200 is an abundant number, since it is smaller than the sum of its proper divisors (155834582644).

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

111112001200 is a wasteful number, since it uses less digits than its factorization.

111112001200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277780021 (or 277780010 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 111112001200 its reverse (2100211111), we get a palindrome (113212212311).

The spelling of 111112001200 in words is "one hundred eleven billion, one hundred twelve million, one thousand, two hundred".