111200121132 has 24 divisors (see below), whose sum is σ = 274729711536. Its totient is φ = 34886312448.

The previous prime is 111200121113. The next prime is 111200121143. The reversal of 111200121132 is 231121002111.

It is a super-2 number, since 2×111200121132² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 272549113 + ... + 272549520.

It is an arithmetic number, because the mean of its divisors is an integer number (11447071314).

Almost surely, 2^111200121132 is an apocalyptic number.

111200121132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111200121132 is an abundant number, since it is smaller than the sum of its proper divisors (163529590404).

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

111200121132 is a wasteful number, since it uses less digits than its factorization.

111200121132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 545098657 (or 545098655 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 111200121132 its reverse (231121002111), we get a palindrome (342321123243).

The spelling of 111200121132 in words is "one hundred eleven billion, two hundred million, one hundred twenty-one thousand, one hundred thirty-two".