121004512 has 24 divisors (see below), whose sum is σ = 242725896. Its totient is φ = 59359872.

The previous prime is 121004447. The next prime is 121004551. The reversal of 121004512 is 215400121.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33978 + ... + 37369.

It is an arithmetic number, because the mean of its divisors is an integer number (10113579).

Almost surely, 2^121004512 is an apocalyptic number.

It is an amenable number.

121004512 is an abundant number, since it is smaller than the sum of its proper divisors (121721384).

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

121004512 is an equidigital number, since it uses as much as digits as its factorization.

121004512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71410 (or 71402 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 121004512 is about 11000.2050889972. The cubic root of 121004512 is about 494.6148921125.

Adding to 121004512 its reverse (215400121), we get a palindrome (336404633).

The spelling of 121004512 in words is "one hundred twenty-one million, four thousand, five hundred twelve".