3223321221 has 4 divisors (see below), whose sum is σ = 4297761632. Its totient is φ = 2148880812.

The previous prime is 3223321207. The next prime is 3223321259. The reversal of 3223321221 is 1221233223.

It is a happy number.

3223321221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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.

It is not a de Polignac number, because 3223321221 - 2¹⁰ = 3223320197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3223321201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 537220201 + ... + 537220206.

It is an arithmetic number, because the mean of its divisors is an integer number (1074440408).

Almost surely, 2^3223321221 is an apocalyptic number.

It is an amenable number.

3223321221 is a deficient number, since it is larger than the sum of its proper divisors (1074440411).

3223321221 is a wasteful number, since it uses less digits than its factorization.

3223321221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1074440410.

The product of its digits is 864, while the sum is 21.

The square root of 3223321221 is about 56774.3007090356. The cubic root of 3223321221 is about 1477.1837760492.

Adding to 3223321221 its reverse (1221233223), we get a palindrome (4444554444).

The spelling of 3223321221 in words is "three billion, two hundred twenty-three million, three hundred twenty-one thousand, two hundred twenty-one".