121172052 has 12 divisors (see below), whose sum is σ = 282734816. Its totient is φ = 40390680.

The previous prime is 121172041. The next prime is 121172071. The reversal of 121172052 is 250271121.

It is a tau number, because it is divible by the number of its divisors (12).

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 3 ways as a sum of consecutive naturals, for example, 5048824 + ... + 5048847.

Almost surely, 2^121172052 is an apocalyptic number.

121172052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121172052 is an abundant number, since it is smaller than the sum of its proper divisors (161562764).

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

121172052 is a wasteful number, since it uses less digits than its factorization.

121172052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10097678 (or 10097676 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 21.

The square root of 121172052 is about 11007.8177673870. The cubic root of 121172052 is about 494.8430642180.

The spelling of 121172052 in words is "one hundred twenty-one million, one hundred seventy-two thousand, fifty-two".