121650612 has 48 divisors (see below), whose sum is σ = 291658752. Its totient is φ = 39443040.

The previous prime is 121650577. The next prime is 121650637. The reversal of 121650612 is 216056121.

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 15 ways as a sum of consecutive naturals, for example, 222123 + ... + 222669.

It is an arithmetic number, because the mean of its divisors is an integer number (6076224).

Almost surely, 2^121650612 is an apocalyptic number.

121650612 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121650612 is an abundant number, since it is smaller than the sum of its proper divisors (170008140).

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

121650612 is a wasteful number, since it uses less digits than its factorization.

121650612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1028 (or 1026 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 121650612 is about 11029.5336256797. The cubic root of 121650612 is about 495.4936570951.

The spelling of 121650612 in words is "one hundred twenty-one million, six hundred fifty thousand, six hundred twelve".