122445312556 has 24 divisors (see below), whose sum is σ = 244965996576. Its totient is φ = 52460411520.

The previous prime is 122445312533. The next prime is 122445312607. The reversal of 122445312556 is 655213544221.

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, 580135 + ... + 762526.

It is an arithmetic number, because the mean of its divisors is an integer number (10206916524).

Almost surely, 2^122445312556 is an apocalyptic number.

It is an amenable number.

122445312556 is an abundant number, since it is smaller than the sum of its proper divisors (122520684020).

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

122445312556 is a wasteful number, since it uses less digits than its factorization.

122445312556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1345929 (or 1345927 counting only the distinct ones).

The product of its digits is 288000, while the sum is 40.

Adding to 122445312556 its reverse (655213544221), we get a palindrome (777658856777).

The spelling of 122445312556 in words is "one hundred twenty-two billion, four hundred forty-five million, three hundred twelve thousand, five hundred fifty-six".