22147126722 has 54 divisors (see below), whose sum is σ = 55830940659. Its totient is φ = 6326487720.

The previous prime is 22147126717. The next prime is 22147126739. The reversal of 22147126722 is 22762174122.

It can be written as a sum of positive squares in only one way, i.e., 11073563361 + 11073563361 = 105231^2 + 105231^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=105231.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 4417197 + ... + 4422207.

Almost surely, 2^22147126722 is an apocalyptic number.

22147126722 is an abundant number, since it is smaller than the sum of its proper divisors (33683813937).

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

22147126722 is an frugal number, since it uses more digits than its factorization.

22147126722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10044 (or 5023 counting only the distinct ones).

The product of its digits is 37632, while the sum is 36.

The spelling of 22147126722 in words is "twenty-two billion, one hundred forty-seven million, one hundred twenty-six thousand, seven hundred twenty-two".