121881252 has 12 divisors (see below), whose sum is σ = 284389616. Its totient is φ = 40627080.

The previous prime is 121881251. The next prime is 121881269. The reversal of 121881252 is 252188121.

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

It is not an unprimeable number, because it can be changed into a prime (121881251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5078374 + ... + 5078397.

Almost surely, 2^121881252 is an apocalyptic number.

121881252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121881252 is an abundant number, since it is smaller than the sum of its proper divisors (162508364).

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

121881252 is a wasteful number, since it uses less digits than its factorization.

121881252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10156778 (or 10156776 counting only the distinct ones).

The product of its digits is 2560, while the sum is 30.

The square root of 121881252 is about 11039.9842391192. The cubic root of 121881252 is about 495.8065984188.

The spelling of 121881252 in words is "one hundred twenty-one million, eight hundred eighty-one thousand, two hundred fifty-two".