121056242 has 16 divisors (see below), whose sum is σ = 183600000. Its totient is φ = 59860080.

The previous prime is 121056217. The next prime is 121056251. The reversal of 121056242 is 242650121.

It is a happy number.

It is a super-2 number, since 2×121056242² = 29309227454325128, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80009 + ... + 81507.

It is an arithmetic number, because the mean of its divisors is an integer number (11475000).

Almost surely, 2^121056242 is an apocalyptic number.

121056242 is a deficient number, since it is larger than the sum of its proper divisors (62543758).

121056242 is a wasteful number, since it uses less digits than its factorization.

121056242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1921.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 121056242 is about 11002.5561575481. The cubic root of 121056242 is about 494.6853654712.

The spelling of 121056242 in words is "one hundred twenty-one million, fifty-six thousand, two hundred forty-two".