121550488 has 8 divisors (see below), whose sum is σ = 227907180. Its totient is φ = 60775240.

The previous prime is 121550479. The next prime is 121550489. The reversal of 121550488 is 884055121.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×121550488² = 29549042266076288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121550489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7596898 + ... + 7596913.

Almost surely, 2^121550488 is an apocalyptic number.

It is an amenable number.

121550488 is a deficient number, since it is larger than the sum of its proper divisors (106356692).

121550488 is a wasteful number, since it uses less digits than its factorization.

121550488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15193817 (or 15193813 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 34.

The square root of 121550488 is about 11024.9937868463. The cubic root of 121550488 is about 495.3576818268.

The spelling of 121550488 in words is "one hundred twenty-one million, five hundred fifty thousand, four hundred eighty-eight".