22315306220 has 24 divisors (see below), whose sum is σ = 47292075600. Its totient is φ = 8844230592.

The previous prime is 22315306217. The next prime is 22315306229. The reversal of 22315306220 is 2260351322.

It is a super-3 number, since 3×22315306220³ (a number of 32 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22315306220.

It is not an unprimeable number, because it can be changed into a prime (22315306229) 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, 5116010 + ... + 5120369.

It is an arithmetic number, because the mean of its divisors is an integer number (1970503150).

Almost surely, 2^22315306220 is an apocalyptic number.

22315306220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22315306220 is an abundant number, since it is smaller than the sum of its proper divisors (24976769380).

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

22315306220 is a wasteful number, since it uses less digits than its factorization.

22315306220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10236497 (or 10236495 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 26.

Adding to 22315306220 its reverse (2260351322), we get a palindrome (24575657542).

The spelling of 22315306220 in words is "twenty-two billion, three hundred fifteen million, three hundred six thousand, two hundred twenty".