122118440 has 16 divisors (see below), whose sum is σ = 274766580. Its totient is φ = 48847360.

The previous prime is 122118427. The next prime is 122118457. The reversal of 122118440 is 44811221.

It can be written as a sum of positive squares in 2 ways, for example, as 98049604 + 24068836 = 9902^2 + 4906^2 .

It is a super-3 number, since 3×122118440³ (a number of 25 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1526441 + ... + 1526520.

Almost surely, 2^122118440 is an apocalyptic number.

122118440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122118440 is an abundant number, since it is smaller than the sum of its proper divisors (152648140).

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

122118440 is a wasteful number, since it uses less digits than its factorization.

122118440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3052972 (or 3052968 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 23.

The square root of 122118440 is about 11050.7212434302. The cubic root of 122118440 is about 496.1280128306.

Adding to 122118440 its reverse (44811221), we get a palindrome (166929661).

The spelling of 122118440 in words is "one hundred twenty-two million, one hundred eighteen thousand, four hundred forty".