121188056 has 16 divisors (see below), whose sum is σ = 247884840. Its totient is φ = 55085440.

The previous prime is 121188047. The next prime is 121188079. The reversal of 121188056 is 650881121.

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, 688481 + ... + 688656.

Almost surely, 2^121188056 is an apocalyptic number.

It is an amenable number.

121188056 is an abundant number, since it is smaller than the sum of its proper divisors (126696784).

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

121188056 is a wasteful number, since it uses less digits than its factorization.

121188056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1377154 (or 1377150 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 32.

The square root of 121188056 is about 11008.5446812919. The cubic root of 121188056 is about 494.8648489988.

The spelling of 121188056 in words is "one hundred twenty-one million, one hundred eighty-eight thousand, fifty-six".