722207120155 has 4 divisors (see below), whose sum is σ = 866648544192. Its totient is φ = 577765696120.

The previous prime is 722207120153. The next prime is 722207120177. The reversal of 722207120155 is 551021702227.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 551021702227 = 3931 ⋅140173417.

It is not a de Polignac number, because 722207120155 - 2¹ = 722207120153 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 722207120155.

It is not an unprimeable number, because it can be changed into a prime (722207120153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72220712011 + ... + 72220712020.

It is an arithmetic number, because the mean of its divisors is an integer number (216662136048).

Almost surely, 2^722207120155 is an apocalyptic number.

722207120155 is a deficient number, since it is larger than the sum of its proper divisors (144441424037).

722207120155 is a wasteful number, since it uses less digits than its factorization.

722207120155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144441424036.

The product of its (nonzero) digits is 19600, while the sum is 34.

The spelling of 722207120155 in words is "seven hundred twenty-two billion, two hundred seven million, one hundred twenty thousand, one hundred fifty-five".