121274120 has 32 divisors (see below), whose sum is σ = 297673920. Its totient is φ = 44099520.

The previous prime is 121274099. The next prime is 121274171. The reversal of 121274120 is 21472121.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 121274092 and 121274101.

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, 137372 + ... + 138251.

It is an arithmetic number, because the mean of its divisors is an integer number (9302310).

Almost surely, 2^121274120 is an apocalyptic number.

121274120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121274120 is an abundant number, since it is smaller than the sum of its proper divisors (176399800).

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

121274120 is a wasteful number, since it uses less digits than its factorization.

121274120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275645 (or 275641 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 20.

The square root of 121274120 is about 11012.4529510913. The cubic root of 121274120 is about 494.9819671695.

The spelling of 121274120 in words is "one hundred twenty-one million, two hundred seventy-four thousand, one hundred twenty".