121608120 has 32 divisors (see below), whose sum is σ = 364824720. Its totient is φ = 32428800.

The previous prime is 121608077. The next prime is 121608131. The reversal of 121608120 is 21806121.

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, 506581 + ... + 506820.

Almost surely, 2^121608120 is an apocalyptic number.

121608120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121608120 is an abundant number, since it is smaller than the sum of its proper divisors (243216600).

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

121608120 is a wasteful number, since it uses less digits than its factorization.

121608120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1013415 (or 1013411 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 21.

The square root of 121608120 is about 11027.6071747229. The cubic root of 121608120 is about 495.4359591572.

The spelling of 121608120 in words is "one hundred twenty-one million, six hundred eight thousand, one hundred twenty".