3221322431 has 8 divisors (see below), whose sum is σ = 3365946240. Its totient is φ = 3077079192.

The previous prime is 3221322427. The next prime is 3221322451. The reversal of 3221322431 is 1342231223.

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

It is a cyclic number.

It is not a de Polignac number, because 3221322431 - 2² = 3221322427 is a prime.

It is a super-2 number, since 2×3221322431² = 20753836408927499522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3221322397 and 3221322406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3221322451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77765 + ... + 111758.

It is an arithmetic number, because the mean of its divisors is an integer number (420743280).

Almost surely, 2^3221322431 is an apocalyptic number.

3221322431 is a deficient number, since it is larger than the sum of its proper divisors (144623809).

3221322431 is a wasteful number, since it uses less digits than its factorization.

3221322431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190285.

The product of its digits is 1728, while the sum is 23.

The square root of 3221322431 is about 56756.6950323924. The cubic root of 3221322431 is about 1476.8783777278.

Adding to 3221322431 its reverse (1342231223), we get a palindrome (4563553654).

The spelling of 3221322431 in words is "three billion, two hundred twenty-one million, three hundred twenty-two thousand, four hundred thirty-one".