121251288 has 32 divisors (see below), whose sum is σ = 303741360. Its totient is φ = 40335360.

The previous prime is 121251281. The next prime is 121251301. The reversal of 121251288 is 882152121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121251281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7656 + ... + 17352.

Almost surely, 2^121251288 is an apocalyptic number.

It is an amenable number.

121251288 is an abundant number, since it is smaller than the sum of its proper divisors (182490072).

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

121251288 is a wasteful number, since it uses less digits than its factorization.

121251288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10227 (or 10223 counting only the distinct ones).

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

The square root of 121251288 is about 11011.4162576846. The cubic root of 121251288 is about 494.9509021806.

The spelling of 121251288 in words is "one hundred twenty-one million, two hundred fifty-one thousand, two hundred eighty-eight".