22042221224 has 8 divisors (see below), whose sum is σ = 41329164810. Its totient is φ = 11021110608.

The previous prime is 22042221211. The next prime is 22042221239. The reversal of 22042221224 is 42212224022.

It can be written as a sum of positive squares in only one way, i.e., 19409505124 + 2632716100 = 139318^2 + 51310^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 22042221224.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1377638819 + ... + 1377638834.

Almost surely, 2^22042221224 is an apocalyptic number.

It is an amenable number.

22042221224 is a deficient number, since it is larger than the sum of its proper divisors (19286943586).

22042221224 is a wasteful number, since it uses less digits than its factorization.

22042221224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2755277659 (or 2755277655 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 23.

Adding to 22042221224 its reverse (42212224022), we get a palindrome (64254445246).

The spelling of 22042221224 in words is "twenty-two billion, forty-two million, two hundred twenty-one thousand, two hundred twenty-four".