122617240420 has 48 divisors (see below), whose sum is σ = 258200596080. Its totient is φ = 48912850944.

The previous prime is 122617240409. The next prime is 122617240423. The reversal of 122617240420 is 24042716221.

It can be written as a sum of positive squares in 8 ways, for example, as 14123420964 + 108493819456 = 118842^2 + 329384^2 .

It is not an unprimeable number, because it can be changed into a prime (122617240423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33057526 + ... + 33061234.

It is an arithmetic number, because the mean of its divisors is an integer number (5379179085).

Almost surely, 2^122617240420 is an apocalyptic number.

122617240420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122617240420 is an abundant number, since it is smaller than the sum of its proper divisors (135583355660).

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

122617240420 is a wasteful number, since it uses less digits than its factorization.

122617240420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7792 (or 7790 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 31.

Adding to 122617240420 its reverse (24042716221), we get a palindrome (146659956641).

The spelling of 122617240420 in words is "one hundred twenty-two billion, six hundred seventeen million, two hundred forty thousand, four hundred twenty".