122625021456 has 120 divisors (see below), whose sum is σ = 409257912960. Its totient is φ = 33512421888.

The previous prime is 122625021439. The next prime is 122625021487. The reversal of 122625021456 is 654120526221.

122625021456 is a `hidden beast` number, since 1 + 2 + 2 + 6 + 2 + 502 + 145 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 122625021456.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2621421 + ... + 2667788.

It is an arithmetic number, because the mean of its divisors is an integer number (3410482608).

Almost surely, 2^122625021456 is an apocalyptic number.

122625021456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

122625021456 is an abundant number, since it is smaller than the sum of its proper divisors (286632891504).

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

122625021456 is a wasteful number, since it uses less digits than its factorization.

122625021456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5289253 (or 5289244 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

Adding to 122625021456 its reverse (654120526221), we get a palindrome (776745547677).

The spelling of 122625021456 in words is "one hundred twenty-two billion, six hundred twenty-five million, twenty-one thousand, four hundred fifty-six".