3223221320 has 32 divisors (see below), whose sum is σ = 7911544320. Its totient is φ = 1172080320.

The previous prime is 3223221307. The next prime is 3223221329. The reversal of 3223221320 is 231223223.

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 = 3223221292 and 3223221301.

It is not an unprimeable number, because it can be changed into a prime (3223221329) 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, 3662312 + ... + 3663191.

It is an arithmetic number, because the mean of its divisors is an integer number (247235760).

Almost surely, 2^3223221320 is an apocalyptic number.

It is an amenable number.

3223221320 is an abundant number, since it is smaller than the sum of its proper divisors (4688323000).

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

3223221320 is a wasteful number, since it uses less digits than its factorization.

3223221320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7325525 (or 7325521 counting only the distinct ones).

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

The square root of 3223221320 is about 56773.4208939359. The cubic root of 3223221320 is about 1477.1685150135.

Adding to 3223221320 its reverse (231223223), we get a palindrome (3454444543).

The spelling of 3223221320 in words is "three billion, two hundred twenty-three million, two hundred twenty-one thousand, three hundred twenty".