22144323422 has 16 divisors (see below), whose sum is σ = 35999450592. Its totient is φ = 10155356640.

The previous prime is 22144323379. The next prime is 22144323449. The reversal of 22144323422 is 22432344122.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2708354 + ... + 2716517.

It is an arithmetic number, because the mean of its divisors is an integer number (2249965662).

Almost surely, 2^22144323422 is an apocalyptic number.

22144323422 is a deficient number, since it is larger than the sum of its proper divisors (13855127170).

22144323422 is a wasteful number, since it uses less digits than its factorization.

22144323422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5425043.

The product of its digits is 18432, while the sum is 29.

Adding to 22144323422 its reverse (22432344122), we get a palindrome (44576667544).

The spelling of 22144323422 in words is "twenty-two billion, one hundred forty-four million, three hundred twenty-three thousand, four hundred twenty-two".