22524321372 has 144 divisors (see below), whose sum is σ = 64651023360. Its totient is φ = 6075820800.

The previous prime is 22524321353. The next prime is 22524321397. The reversal of 22524321372 is 27312342522.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 732279 + ... + 762417.

It is an arithmetic number, because the mean of its divisors is an integer number (448965440).

Almost surely, 2^22524321372 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 22524321372, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32325511680).

22524321372 is an abundant number, since it is smaller than the sum of its proper divisors (42126701988).

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

22524321372 is a wasteful number, since it uses less digits than its factorization.

22524321372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30232 (or 30223 counting only the distinct ones).

The product of its digits is 40320, while the sum is 33.

Adding to 22524321372 its reverse (27312342522), we get a palindrome (49836663894).

The spelling of 22524321372 in words is "twenty-two billion, five hundred twenty-four million, three hundred twenty-one thousand, three hundred seventy-two".