121880120 has 32 divisors (see below), whose sum is σ = 274864320. Its totient is φ = 48639360.

The previous prime is 121880119. The next prime is 121880131. The reversal of 121880120 is 21088121.

It is a happy number.

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, 15230 + ... + 21810.

It is an arithmetic number, because the mean of its divisors is an integer number (8589510).

Almost surely, 2^121880120 is an apocalyptic number.

121880120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121880120 is an abundant number, since it is smaller than the sum of its proper divisors (152984200).

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

121880120 is a wasteful number, since it uses less digits than its factorization.

121880120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7055 (or 7051 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 23.

The square root of 121880120 is about 11039.9329708110. The cubic root of 121880120 is about 495.8050634417.

The spelling of 121880120 in words is "one hundred twenty-one million, eight hundred eighty thousand, one hundred twenty".