3221323321 has 4 divisors (see below), whose sum is σ = 3266694144. Its totient is φ = 3175952500.

The previous prime is 3221323291. The next prime is 3221323373. The reversal of 3221323321 is 1233231223.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1233231223 = 7 ⋅176175889.

It is a cyclic number.

It is not a de Polignac number, because 3221323321 - 2³¹ = 1073839673 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3221323292 and 3221323301.

It is not an unprimeable number, because it can be changed into a prime (3221326321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22685305 + ... + 22685446.

It is an arithmetic number, because the mean of its divisors is an integer number (816673536).

Almost surely, 2^3221323321 is an apocalyptic number.

It is an amenable number.

3221323321 is a deficient number, since it is larger than the sum of its proper divisors (45370823).

3221323321 is an equidigital number, since it uses as much as digits as its factorization.

3221323321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45370822.

The product of its digits is 1296, while the sum is 22.

The square root of 3221323321 is about 56756.7028728766. The cubic root of 3221323321 is about 1476.8785137404.

Adding to 3221323321 its reverse (1233231223), we get a palindrome (4454554544).

The spelling of 3221323321 in words is "three billion, two hundred twenty-one million, three hundred twenty-three thousand, three hundred twenty-one".