22144113424 has 20 divisors (see below), whose sum is σ = 44063794444. Its totient is φ = 10772811648.

The previous prime is 22144113379. The next prime is 22144113493. The reversal of 22144113424 is 42431144122.

It can be written as a sum of positive squares in 2 ways, for example, as 17524464400 + 4619649024 = 132380^2 + 67968^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22144113392 and 22144113401.

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, 18702207 + ... + 18703390.

Almost surely, 2^22144113424 is an apocalyptic number.

It is an amenable number.

22144113424 is a deficient number, since it is larger than the sum of its proper divisors (21919681020).

22144113424 is a wasteful number, since it uses less digits than its factorization.

22144113424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37405642 (or 37405636 counting only the distinct ones).

The product of its digits is 6144, while the sum is 28.

Adding to 22144113424 its reverse (42431144122), we get a palindrome (64575257546).

The spelling of 22144113424 in words is "twenty-two billion, one hundred forty-four million, one hundred thirteen thousand, four hundred twenty-four".