122288520 has 32 divisors (see below), whose sum is σ = 366865920. Its totient is φ = 32610240.

The previous prime is 122288471. The next prime is 122288549. The reversal of 122288520 is 25882221.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 509416 + ... + 509655.

It is an arithmetic number, because the mean of its divisors is an integer number (11464560).

Almost surely, 2^122288520 is an apocalyptic number.

122288520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122288520 is an abundant number, since it is smaller than the sum of its proper divisors (244577400).

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

122288520 is a wasteful number, since it uses less digits than its factorization.

122288520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1019085 (or 1019081 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 30.

The square root of 122288520 is about 11058.4139911653. The cubic root of 122288520 is about 496.3582327950.

The spelling of 122288520 in words is "one hundred twenty-two million, two hundred eighty-eight thousand, five hundred twenty".