111122121101200 has 180 divisors, whose sum is σ = 297580418884224. Its totient is φ = 39838915424000.

The previous prime is 111122121101183. The next prime is 111122121101291. The reversal of 111122121101200 is 2101121221111.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 12731992 + ... + 19604791.

Almost surely, 2^{111122121101200} is an apocalyptic number.

111122121101200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111122121101200 is an abundant number, since it is smaller than the sum of its proper divisors (186458297783024).

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

111122121101200 is a wasteful number, since it uses less digits than its factorization.

111122121101200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32336894 (or 32336872 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 16.

Adding to 111122121101200 its reverse (2101121221111), we get a palindrome (113223242322311).

The spelling of 111122121101200 in words is "one hundred eleven trillion, one hundred twenty-two billion, one hundred twenty-one million, one hundred one thousand, two hundred".