121258660 has 24 divisors (see below), whose sum is σ = 255931200. Its totient is φ = 48258144.

The previous prime is 121258651. The next prime is 121258661. The reversal of 121258660 is 66852121.

It is not an unprimeable number, because it can be changed into a prime (121258661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11254 + ... + 19213.

It is an arithmetic number, because the mean of its divisors is an integer number (10663800).

Almost surely, 2^121258660 is an apocalyptic number.

121258660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121258660 is an abundant number, since it is smaller than the sum of its proper divisors (134672540).

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

121258660 is a wasteful number, since it uses less digits than its factorization.

121258660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30675 (or 30673 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 121258660 is about 11011.7509960950. The cubic root of 121258660 is about 494.9609328757.

The spelling of 121258660 in words is "one hundred twenty-one million, two hundred fifty-eight thousand, six hundred sixty".