3221330231 has 4 divisors (see below), whose sum is σ = 3681520272. Its totient is φ = 2761140192.

The previous prime is 3221330207. The next prime is 3221330261. The reversal of 3221330231 is 1320331223.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3221330231 - 2¹⁴ = 3221313847 is a prime.

It is a super-2 number, since 2×3221330231² = 20753936914309026722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3221330201) 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, 230095010 + ... + 230095023.

It is an arithmetic number, because the mean of its divisors is an integer number (920380068).

Almost surely, 2^3221330231 is an apocalyptic number.

3221330231 is a deficient number, since it is larger than the sum of its proper divisors (460190041).

3221330231 is an equidigital number, since it uses as much as digits as its factorization.

3221330231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460190040.

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 3221330231 is about 56756.7637467113. The cubic root of 3221330231 is about 1476.8795697478.

Adding to 3221330231 its reverse (1320331223), we get a palindrome (4541661454).

The spelling of 3221330231 in words is "three billion, two hundred twenty-one million, three hundred thirty thousand, two hundred thirty-one".