111200021011200 has 1296 divisors, whose sum is σ = 426297332474496. Its totient is φ = 25310792908800.

The previous prime is 111200021011199. The next prime is 111200021011229. The reversal of 111200021011200 is 2110120002111.

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 (17) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 8615475147 + ... + 8615488053.

Almost surely, 2^{111200021011200} is an apocalyptic number.

111200021011200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111200021011200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (213148666237248).

111200021011200 is an abundant number, since it is smaller than the sum of its proper divisors (315097311463296).

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

111200021011200 is a wasteful number, since it uses less digits than its factorization.

111200021011200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13098 (or 13060 counting only the distinct ones).

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

Adding to 111200021011200 its reverse (2110120002111), we get a palindrome (113310141013311).

The spelling of 111200021011200 in words is "one hundred eleven trillion, two hundred billion, twenty-one million, eleven thousand, two hundred".