22013123122 has 16 divisors (see below), whose sum is σ = 34135378200. Its totient is φ = 10639589760.

The previous prime is 22013123089. The next prime is 22013123129. The reversal of 22013123122 is 22132131022.

It can be written as a sum of positive squares in 4 ways, for example, as 13516155081 + 8496968041 = 116259^2 + 92179^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 22013123122.

It is not an unprimeable number, because it can be changed into a prime (22013123129) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1222497 + ... + 1240372.

Almost surely, 2^22013123122 is an apocalyptic number.

22013123122 is a deficient number, since it is larger than the sum of its proper divisors (12122255078).

22013123122 is a wasteful number, since it uses less digits than its factorization.

22013123122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2463021.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 22013123122 its reverse (22132131022), we get a palindrome (44145254144).

It can be divided in two parts, 220131 and 23122, that added together give a triangular number (243253 = T₆₉₇).

The spelling of 22013123122 in words is "twenty-two billion, thirteen million, one hundred twenty-three thousand, one hundred twenty-two".