72222118884 has 96 divisors (see below), whose sum is σ = 189254782080. Its totient is φ = 23815728000.

The previous prime is 72222118877. The next prime is 72222118889. The reversal of 72222118884 is 48881122227.

It is not an unprimeable number, because it can be changed into a prime (72222118889) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18988927 + ... + 18992729.

It is an arithmetic number, because the mean of its divisors is an integer number (1971403980).

Almost surely, 2^72222118884 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 72222118884, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94627391040).

72222118884 is an abundant number, since it is smaller than the sum of its proper divisors (117032663196).

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

72222118884 is a wasteful number, since it uses less digits than its factorization.

72222118884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5658 (or 5650 counting only the distinct ones).

The product of its digits is 229376, while the sum is 45.

The spelling of 72222118884 in words is "seventy-two billion, two hundred twenty-two million, one hundred eighteen thousand, eight hundred eighty-four".