22331322220 has 12 divisors (see below), whose sum is σ = 46895776704. Its totient is φ = 8932528880.

The previous prime is 22331322217. The next prime is 22331322229. The reversal of 22331322220 is 2222313322.

It is a junction number, because it is equal to n+sod(n) for n = 22331322191 and 22331322200.

It is not an unprimeable number, because it can be changed into a prime (22331322229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 558283036 + ... + 558283075.

It is an arithmetic number, because the mean of its divisors is an integer number (3907981392).

Almost surely, 2^22331322220 is an apocalyptic number.

22331322220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22331322220 is an abundant number, since it is smaller than the sum of its proper divisors (24564454484).

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

22331322220 is a wasteful number, since it uses less digits than its factorization.

22331322220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1116566120 (or 1116566118 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 22331322220 its reverse (2222313322), we get a palindrome (24553635542).

The spelling of 22331322220 in words is "twenty-two billion, three hundred thirty-one million, three hundred twenty-two thousand, two hundred twenty".