22015993122 has 54 divisors (see below), whose sum is σ = 48950528211. Its totient is φ = 7151279040.

The previous prime is 22015993121. The next prime is 22015993127. The reversal of 22015993122 is 22139951022.

It can be written as a sum of positive squares in 5 ways, for example, as 2196703161 + 19819289961 = 46869^2 + 140781^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=104919.

It is not an unprimeable number, because it can be changed into a prime (22015993121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 25809648 + ... + 25810500.

Almost surely, 2^22015993122 is an apocalyptic number.

22015993122 is an abundant number, since it is smaller than the sum of its proper divisors (26934535089).

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

22015993122 is an frugal number, since it uses more digits than its factorization.

22015993122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1796 (or 899 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The spelling of 22015993122 in words is "twenty-two billion, fifteen million, nine hundred ninety-three thousand, one hundred twenty-two".