972222222222 has 24 divisors (see below), whose sum is σ = 2107961847264. Its totient is φ = 323846325504.

The previous prime is 972222222221. The next prime is 972222222229. The reversal of 972222222222 is 222222222279.

972222222222 is a modest number, since divided by 2222222 gives 97222 as remainder.

It is a nialpdrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (972222222221) 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, 18952723 + ... + 19003950.

It is an arithmetic number, because the mean of its divisors is an integer number (87831743636).

Almost surely, 2^972222222222 is an apocalyptic number.

972222222222 is an abundant number, since it is smaller than the sum of its proper divisors (1135739625042).

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

972222222222 is a wasteful number, since it uses less digits than its factorization.

972222222222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37958104 (or 37958101 counting only the distinct ones).

The product of its digits is 64512, while the sum is 36.

The spelling of 972222222222 in words is "nine hundred seventy-two billion, two hundred twenty-two million, two hundred twenty-two thousand, two hundred twenty-two".