3221331 has 8 divisors (see below), whose sum is σ = 4411344. Its totient is φ = 2089440.

The previous prime is 3221327. The next prime is 3221353. The reversal of 3221331 is 1331223.

3221331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3221331 - 2² = 3221327 is a prime.

It is a super-2 number, since 2×3221331² = 20753946823122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3221331.

It is not an unprimeable number, because it can be changed into a prime (3221321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14400 + ... + 14621.

It is an arithmetic number, because the mean of its divisors is an integer number (551418).

Almost surely, 2^3221331 is an apocalyptic number.

3221331 is a deficient number, since it is larger than the sum of its proper divisors (1190013).

3221331 is a wasteful number, since it uses less digits than its factorization.

3221331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29061.

The product of its digits is 108, while the sum is 15.

The square root of 3221331 is about 1794.8066748260. The cubic root of 3221331 is about 147.6879687269.

Subtracting from 3221331 its product of digits (108), we obtain a palindrome (3221223).

Adding to 3221331 its reverse (1331223), we get a palindrome (4552554).

It can be divided in two parts, 322 and 1331, that added together give a triangular number (1653 = T₅₇).

The spelling of 3221331 in words is "three million, two hundred twenty-one thousand, three hundred thirty-one".