121137554852 has 24 divisors (see below), whose sum is σ = 213010538496. Its totient is φ = 60278096448.

The previous prime is 121137554843. The next prime is 121137554861. The reversal of 121137554852 is 258455731121.

It is an interprime number because it is at equal distance from previous prime (121137554843) and next prime (121137554861).

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, 613613 + ... + 786635.

It is an arithmetic number, because the mean of its divisors is an integer number (8875439104).

Almost surely, 2^121137554852 is an apocalyptic number.

It is an amenable number.

121137554852 is a deficient number, since it is larger than the sum of its proper divisors (91872983644).

121137554852 is a wasteful number, since it uses less digits than its factorization.

121137554852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173867 (or 173865 counting only the distinct ones).

The product of its digits is 336000, while the sum is 44.

The spelling of 121137554852 in words is "one hundred twenty-one billion, one hundred thirty-seven million, five hundred fifty-four thousand, eight hundred fifty-two".