122520155005564 has 6 divisors (see below), whose sum is σ = 214410271259744. Its totient is φ = 61260077502780.

The previous prime is 122520155005559. The next prime is 122520155005621. The reversal of 122520155005564 is 465500551025221.

122520155005564 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×122520155005564² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 122520155005564.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15315019375692 + ... + 15315019375699.

Almost surely, 2^{122520155005564} is an apocalyptic number.

It is an amenable number.

122520155005564 is a deficient number, since it is larger than the sum of its proper divisors (91890116254180).

122520155005564 is a wasteful number, since it uses less digits than its factorization.

122520155005564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30630038751395 (or 30630038751393 counting only the distinct ones).

The product of its (nonzero) digits is 600000, while the sum is 43.

The spelling of 122520155005564 in words is "one hundred twenty-two trillion, five hundred twenty billion, one hundred fifty-five million, five thousand, five hundred sixty-four".