22143432224 has 48 divisors (see below), whose sum is σ = 45026136792. Its totient is φ = 10713950208.

The previous prime is 22143432221. The next prime is 22143432239. The reversal of 22143432224 is 42223434122.

It can be written as a sum of positive squares in 4 ways, for example, as 21298483600 + 844948624 = 145940^2 + 29068^2 .

It is not an unprimeable number, because it can be changed into a prime (22143432221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34382 + ... + 213234.

Almost surely, 2^22143432224 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22143432224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22513068396).

22143432224 is an abundant number, since it is smaller than the sum of its proper divisors (22882704568).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22143432224 is a wasteful number, since it uses less digits than its factorization.

22143432224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178989 (or 178981 counting only the distinct ones).

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

Adding to 22143432224 its reverse (42223434122), we get a palindrome (64366866346).

The spelling of 22143432224 in words is "twenty-two billion, one hundred forty-three million, four hundred thirty-two thousand, two hundred twenty-four".