111220121200194 has 24 divisors (see below), whose sum is σ = 240980583946752. Its totient is φ = 37072811475000.

The previous prime is 111220121200187. The next prime is 111220121200289. The reversal of 111220121200194 is 491002121022111.

111220121200194 is a `hidden beast` number, since 111 + 220 + 121 + 20 + 0 + 194 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45634182 + ... + 48009569.

It is an arithmetic number, because the mean of its divisors is an integer number (10040857664448).

Almost surely, 2^{111220121200194} is an apocalyptic number.

111220121200194 is an abundant number, since it is smaller than the sum of its proper divisors (129760462746558).

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

111220121200194 is a wasteful number, since it uses less digits than its factorization.

111220121200194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93709742 (or 93709739 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 27.

The spelling of 111220121200194 in words is "one hundred eleven trillion, two hundred twenty billion, one hundred twenty-one million, two hundred thousand, one hundred ninety-four".