121056866 has 64 divisors (see below), whose sum is σ = 233349120. Its totient is φ = 45904320.

The previous prime is 121056863. The next prime is 121056877. The reversal of 121056866 is 668650121.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (121056863) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 287336 + ... + 287756.

It is an arithmetic number, because the mean of its divisors is an integer number (3646080).

Almost surely, 2^121056866 is an apocalyptic number.

121056866 is a deficient number, since it is larger than the sum of its proper divisors (112292254).

121056866 is a wasteful number, since it uses less digits than its factorization.

121056866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 519.

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 121056866 is about 11002.5845145584. The cubic root of 121056866 is about 494.6862154429.

The spelling of 121056866 in words is "one hundred twenty-one million, fifty-six thousand, eight hundred sixty-six".