122522304520 has 128 divisors (see below), whose sum is σ = 344208061440. Its totient is φ = 38132202240.

The previous prime is 122522304497. The next prime is 122522304533. The reversal of 122522304520 is 25403225221.

It is a super-2 number, since 2×122522304520² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2074519 + ... + 2132761.

It is an arithmetic number, because the mean of its divisors is an integer number (2689125480).

Almost surely, 2^122522304520 is an apocalyptic number.

122522304520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122522304520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (172104030720).

122522304520 is an abundant number, since it is smaller than the sum of its proper divisors (221685756920).

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

122522304520 is a wasteful number, since it uses less digits than its factorization.

122522304520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58955 (or 58951 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

Adding to 122522304520 its reverse (25403225221), we get a palindrome (147925529741).

The spelling of 122522304520 in words is "one hundred twenty-two billion, five hundred twenty-two million, three hundred four thousand, five hundred twenty".