72522327222 has 24 divisors (see below), whose sum is σ = 157260237264. Its totient is φ = 24154335504.

The previous prime is 72522327217. The next prime is 72522327223. The reversal of 72522327222 is 22272322527.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72522327223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1625173 + ... + 1669200.

It is an arithmetic number, because the mean of its divisors is an integer number (6552509886).

Almost surely, 2^72522327222 is an apocalyptic number.

72522327222 is an abundant number, since it is smaller than the sum of its proper divisors (84737910042).

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

72522327222 is a wasteful number, since it uses less digits than its factorization.

72522327222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3295604 (or 3295601 counting only the distinct ones).

The product of its digits is 94080, while the sum is 36.

Adding to 72522327222 its reverse (22272322527), we get a palindrome (94794649749).

The spelling of 72522327222 in words is "seventy-two billion, five hundred twenty-two million, three hundred twenty-seven thousand, two hundred twenty-two".