22144441232 has 20 divisors (see below), whose sum is σ = 42924776076. Its totient is φ = 11067079680.

The previous prime is 22144441171. The next prime is 22144441261. The reversal of 22144441232 is 23214444122.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 11441297296 + 10703143936 = 106964^2 + 103456^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22144441195 and 22144441204.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 285653 + ... + 354804.

Almost surely, 2^22144441232 is an apocalyptic number.

It is an amenable number.

22144441232 is a deficient number, since it is larger than the sum of its proper divisors (20780334844).

22144441232 is a wasteful number, since it uses less digits than its factorization.

22144441232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 642626 (or 642620 counting only the distinct ones).

The product of its digits is 12288, while the sum is 29.

Adding to 22144441232 its reverse (23214444122), we get a palindrome (45358885354).

The spelling of 22144441232 in words is "twenty-two billion, one hundred forty-four million, four hundred forty-one thousand, two hundred thirty-two".