122998779040 has 48 divisors (see below), whose sum is σ = 296067364488. Its totient is φ = 48271215616.

The previous prime is 122998779037. The next prime is 122998779041. The reversal of 122998779040 is 40977899221.

It can be written as a sum of positive squares in 4 ways, for example, as 113119214224 + 9879564816 = 336332^2 + 99396^2 .

It is not an unprimeable number, because it can be changed into a prime (122998779041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7243807 + ... + 7260766.

Almost surely, 2^122998779040 is an apocalyptic number.

122998779040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122998779040 is an abundant number, since it is smaller than the sum of its proper divisors (173068585448).

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

122998779040 is a wasteful number, since it uses less digits than its factorization.

122998779040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14504641 (or 14504633 counting only the distinct ones).

The product of its (nonzero) digits is 4572288, while the sum is 58.

The spelling of 122998779040 in words is "one hundred twenty-two billion, nine hundred ninety-eight million, seven hundred seventy-nine thousand, forty".