22032213220 has 24 divisors (see below), whose sum is σ = 46901454264. Its totient is φ = 8692160256.

The previous prime is 22032213169. The next prime is 22032213233. The reversal of 22032213220 is 2231223022.

It can be written as a sum of positive squares in 4 ways, for example, as 372026944 + 21660186276 = 19288^2 + 147174^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7543819 + ... + 7546738.

It is an arithmetic number, because the mean of its divisors is an integer number (1954227261).

Almost surely, 2^22032213220 is an apocalyptic number.

22032213220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22032213220 is an abundant number, since it is smaller than the sum of its proper divisors (24869241044).

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

22032213220 is a wasteful number, since it uses less digits than its factorization.

22032213220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15090639 (or 15090637 counting only the distinct ones).

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

Adding to 22032213220 its reverse (2231223022), we get a palindrome (24263436242).

The spelling of 22032213220 in words is "twenty-two billion, thirty-two million, two hundred thirteen thousand, two hundred twenty".