122118840 has 80 divisors (see below), whose sum is σ = 410465880. Its totient is φ = 32564160.

The previous prime is 122118791. The next prime is 122118847. The reversal of 122118840 is 48811221.

It is a super-2 number, since 2×122118840² = 29826022165891200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122118847) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 15606 + ... + 22085.

Almost surely, 2^122118840 is an apocalyptic number.

122118840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122118840 is an abundant number, since it is smaller than the sum of its proper divisors (288347040).

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

122118840 is a wasteful number, since it uses less digits than its factorization.

122118840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37714 (or 37701 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 27.

The square root of 122118840 is about 11050.7393417816. The cubic root of 122118840 is about 496.1285545206.

The spelling of 122118840 in words is "one hundred twenty-two million, one hundred eighteen thousand, eight hundred forty".