22231303220 has 48 divisors (see below), whose sum is σ = 53434633728. Its totient is φ = 7610803200.

The previous prime is 22231303217. The next prime is 22231303231. The reversal of 22231303220 is 2230313222.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 22231303192 and 22231303201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23756 + ... + 212195.

It is an arithmetic number, because the mean of its divisors is an integer number (1113221536).

Almost surely, 2^22231303220 is an apocalyptic number.

22231303220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22231303220 is an abundant number, since it is smaller than the sum of its proper divisors (31203330508).

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

22231303220 is a wasteful number, since it uses less digits than its factorization.

22231303220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236640 (or 236638 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 22231303220 its reverse (2230313222), we get a palindrome (24461616442).

The spelling of 22231303220 in words is "twenty-two billion, two hundred thirty-one million, three hundred three thousand, two hundred twenty".