122315040020 has 24 divisors (see below), whose sum is σ = 262326726144. Its totient is φ = 47885036576.

The previous prime is 122315039983. The next prime is 122315040059. The reversal of 122315040020 is 20040513221.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 122315039974 and 122315040001.

It is a congruent number.

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, 65060252 + ... + 65062131.

It is an arithmetic number, because the mean of its divisors is an integer number (10930280256).

Almost surely, 2^122315040020 is an apocalyptic number.

122315040020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122315040020 is an abundant number, since it is smaller than the sum of its proper divisors (140011686124).

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

122315040020 is a wasteful number, since it uses less digits than its factorization.

122315040020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130122439 (or 130122437 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

Adding to 122315040020 its reverse (20040513221), we get a palindrome (142355553241).

The spelling of 122315040020 in words is "one hundred twenty-two billion, three hundred fifteen million, forty thousand, twenty".