22231302220 has 24 divisors (see below), whose sum is σ = 49431955104. Its totient is φ = 8369431296.

The previous prime is 22231302199. The next prime is 22231302221. The reversal of 22231302220 is 2220313222.

It is not an unprimeable number, because it can be changed into a prime (22231302221) 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, 32692752 + ... + 32693431.

It is an arithmetic number, because the mean of its divisors is an integer number (2059664796).

Almost surely, 2^22231302220 is an apocalyptic number.

22231302220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22231302220 is an abundant number, since it is smaller than the sum of its proper divisors (27200652884).

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

22231302220 is a wasteful number, since it uses less digits than its factorization.

22231302220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65386209 (or 65386207 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 22231302220 its reverse (2220313222), we get a palindrome (24451615442).

The spelling of 22231302220 in words is "twenty-two billion, two hundred thirty-one million, three hundred two thousand, two hundred twenty".