22215522276 has 36 divisors (see below), whose sum is σ = 59459193612. Its totient is φ = 6969575424.

The previous prime is 22215522257. The next prime is 22215522283. The reversal of 22215522276 is 67222551222.

It can be written as a sum of positive squares in 2 ways, for example, as 16608507876 + 5607014400 = 128874^2 + 74880^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 22215522276.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 18149325 + ... + 18150548.

It is an arithmetic number, because the mean of its divisors is an integer number (1651644267).

Almost surely, 2^22215522276 is an apocalyptic number.

It is an amenable number.

22215522276 is an abundant number, since it is smaller than the sum of its proper divisors (37243671336).

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

22215522276 is a wasteful number, since it uses less digits than its factorization.

22215522276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36299900 (or 36299895 counting only the distinct ones).

The product of its digits is 67200, while the sum is 36.

The spelling of 22215522276 in words is "twenty-two billion, two hundred fifteen million, five hundred twenty-two thousand, two hundred seventy-six".