22144223352 has 32 divisors (see below), whose sum is σ = 55370552400. Its totient is φ = 7380075264.

The previous prime is 22144223329. The next prime is 22144223357. The reversal of 22144223352 is 25332244122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22144223357) 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, 57274 + ... + 218102.

Almost surely, 2^22144223352 is an apocalyptic number.

It is an amenable number.

22144223352 is an abundant number, since it is smaller than the sum of its proper divisors (33226329048).

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

22144223352 is a wasteful number, since it uses less digits than its factorization.

22144223352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166575 (or 166571 counting only the distinct ones).

The product of its digits is 23040, while the sum is 30.

Adding to 22144223352 its reverse (25332244122), we get a palindrome (47476467474).

The spelling of 22144223352 in words is "twenty-two billion, one hundred forty-four million, two hundred twenty-three thousand, three hundred fifty-two".