22243221504 has 504 divisors, whose sum is σ = 76917791808. Its totient is φ = 6172508160.

The previous prime is 22243221479. The next prime is 22243221523. The reversal of 22243221504 is 40512234222.

22243221504 is a `hidden beast` number, since 222 + 432 + 2 + 1 + 5 + 0 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (504).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 169795519 + ... + 169795649.

Almost surely, 2^22243221504 is an apocalyptic number.

22243221504 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22243221504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38458895904).

22243221504 is an abundant number, since it is smaller than the sum of its proper divisors (54674570304).

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

22243221504 is a wasteful number, since it uses less digits than its factorization.

22243221504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224 (or 190 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

Adding to 22243221504 its reverse (40512234222), we get a palindrome (62755455726).

The spelling of 22243221504 in words is "twenty-two billion, two hundred forty-three million, two hundred twenty-one thousand, five hundred four".