121870772 has 24 divisors (see below), whose sum is σ = 221020800. Its totient is φ = 58758336.

The previous prime is 121870751. The next prime is 121870783. The reversal of 121870772 is 277078121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9104 + ... + 18072.

It is an arithmetic number, because the mean of its divisors is an integer number (9209200).

Almost surely, 2^121870772 is an apocalyptic number.

It is an amenable number.

121870772 is a deficient number, since it is larger than the sum of its proper divisors (99150028).

121870772 is a wasteful number, since it uses less digits than its factorization.

121870772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9095 (or 9093 counting only the distinct ones).

The product of its (nonzero) digits is 10976, while the sum is 35.

The square root of 121870772 is about 11039.5095905570. The cubic root of 121870772 is about 495.7923873131.

The spelling of 121870772 in words is "one hundred twenty-one million, eight hundred seventy thousand, seven hundred seventy-two".