22265391138 has 32 divisors (see below), whose sum is σ = 44978159616. Its totient is φ = 7347282768.

The previous prime is 22265391133. The next prime is 22265391217. The reversal of 22265391138 is 83119356222.

It is a self number, because there is not a number n which added to its sum of digits gives 22265391138.

It is not an unprimeable number, because it can be changed into a prime (22265391133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3397581 + ... + 3404127.

It is an arithmetic number, because the mean of its divisors is an integer number (1405567488).

Almost surely, 2^22265391138 is an apocalyptic number.

22265391138 is an abundant number, since it is smaller than the sum of its proper divisors (22712768478).

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

22265391138 is a wasteful number, since it uses less digits than its factorization.

22265391138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12158.

The product of its digits is 155520, while the sum is 42.

The spelling of 22265391138 in words is "twenty-two billion, two hundred sixty-five million, three hundred ninety-one thousand, one hundred thirty-eight".