22122313320 has 128 divisors (see below), whose sum is σ = 71748316800. Its totient is φ = 5437725696.

The previous prime is 22122313313. The next prime is 22122313331. The reversal of 22122313320 is 2331322122.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 46759 + ... + 215478.

It is an arithmetic number, because the mean of its divisors is an integer number (560533725).

Almost surely, 2^22122313320 is an apocalyptic number.

22122313320 is a gapful number since it is divisible by the number (20) 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 22122313320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35874158400).

22122313320 is an abundant number, since it is smaller than the sum of its proper divisors (49626003480).

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

22122313320 is a wasteful number, since it uses less digits than its factorization.

22122313320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262307 (or 262303 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 22122313320 its reverse (2331322122), we get a palindrome (24453635442).

The spelling of 22122313320 in words is "twenty-two billion, one hundred twenty-two million, three hundred thirteen thousand, three hundred twenty".