121277488 has 20 divisors (see below), whose sum is σ = 235311328. Its totient is φ = 60552000.

The previous prime is 121277483. The next prime is 121277489. The reversal of 121277488 is 884772121.

It is a self number, because there is not a number n which added to its sum of digits gives 121277488.

It is not an unprimeable number, because it can be changed into a prime (121277483) 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, 6970 + ... + 17062.

Almost surely, 2^121277488 is an apocalyptic number.

It is an amenable number.

121277488 is a deficient number, since it is larger than the sum of its proper divisors (114033840).

121277488 is a wasteful number, since it uses less digits than its factorization.

121277488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10852 (or 10846 counting only the distinct ones).

The product of its digits is 50176, while the sum is 40.

The square root of 121277488 is about 11012.6058678226. The cubic root of 121277488 is about 494.9865493063.

The spelling of 121277488 in words is "one hundred twenty-one million, two hundred seventy-seven thousand, four hundred eighty-eight".