111201111121200 has 60 divisors (see below), whose sum is σ = 356214225962088. Its totient is φ = 29653629632000.

The previous prime is 111201111121187. The next prime is 111201111121231. The reversal of 111201111121200 is 2121111102111.

It is a tau number, because it is divible by the number of its divisors (60).

It is a super-2 number, since 2×111201111121200² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 111201111121200.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 46333795101 + ... + 46333797500.

Almost surely, 2^{111201111121200} is an apocalyptic number.

111201111121200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111201111121200 is an abundant number, since it is smaller than the sum of its proper divisors (245013114840888).

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

111201111121200 is a wasteful number, since it uses less digits than its factorization.

111201111121200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92667592622 (or 92667592611 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 111201111121200 its reverse (2121111102111), we get a palindrome (113322222223311).

The spelling of 111201111121200 in words is "one hundred eleven trillion, two hundred one billion, one hundred eleven million, one hundred twenty-one thousand, two hundred".