121122975894 has 8 divisors (see below), whose sum is σ = 242245951800. Its totient is φ = 40374325296.

The previous prime is 121122975781. The next prime is 121122975913. The reversal of 121122975894 is 498579221121.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

121122975894 is an admirable number.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10093581319 + ... + 10093581330.

It is an arithmetic number, because the mean of its divisors is an integer number (30280743975).

Almost surely, 2^121122975894 is an apocalyptic number.

121122975894 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

121122975894 is a wasteful number, since it uses less digits than its factorization.

121122975894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20187162654.

The product of its digits is 725760, while the sum is 51.

The spelling of 121122975894 in words is "one hundred twenty-one billion, one hundred twenty-two million, nine hundred seventy-five thousand, eight hundred ninety-four".