3221331132231 has 12 divisors (see below), whose sum is σ = 4825368445352. Its totient is φ = 2147554087992.

The previous prime is 3221331132169. The next prime is 3221331132359. The reversal of 3221331132231 is 1322311331223.

3221331132231 is a `hidden beast` number, since 3 + 2 + 2 + 1 + 331 + 1 + 322 + 3 + 1 = 666.

It is not a de Polignac number, because 3221331132231 - 2¹⁷ = 3221331001159 is a prime.

It is a super-2 number, since 2×3221331132231² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3221331132195 and 3221331132204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3221331132731) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6628253116 + ... + 6628253601.

Almost surely, 2^{3221331132231} is an apocalyptic number.

3221331132231 is a deficient number, since it is larger than the sum of its proper divisors (1604037313121).

3221331132231 is an equidigital number, since it uses as much as digits as its factorization.

3221331132231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13256506732 (or 13256506720 counting only the distinct ones).

The product of its digits is 3888, while the sum is 27.

Adding to 3221331132231 its reverse (1322311331223), we get a palindrome (4543642463454).

The spelling of 3221331132231 in words is "three trillion, two hundred twenty-one billion, three hundred thirty-one million, one hundred thirty-two thousand, two hundred thirty-one".