121056018 has 8 divisors (see below), whose sum is σ = 242112048. Its totient is φ = 40352004.

The previous prime is 121055999. The next prime is 121056029. The reversal of 121056018 is 810650121.

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

121056018 is an admirable number.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax 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, 10087996 + ... + 10088007.

It is an arithmetic number, because the mean of its divisors is an integer number (30264006).

Almost surely, 2^121056018 is an apocalyptic number.

121056018 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.

121056018 is a wasteful number, since it uses less digits than its factorization.

121056018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20176008.

The product of its (nonzero) digits is 480, while the sum is 24.

The square root of 121056018 is about 11002.5459780907. The cubic root of 121056018 is about 494.6850603524.

The spelling of 121056018 in words is "one hundred twenty-one million, fifty-six thousand, eighteen".