3221444431 has 2 divisors, whose sum is σ = 3221444432. Its totient is φ = 3221444430.

The previous prime is 3221444363. The next prime is 3221444483. The reversal of 3221444431 is 1344441223.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3221444431 - 2¹¹ = 3221442383 is a prime.

It is a super-2 number, since 2×3221444431² = 20755408444041827522, 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 3221444431.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3221444231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1610722215 + 1610722216.

It is an arithmetic number, because the mean of its divisors is an integer number (1610722216).

Almost surely, 2^3221444431 is an apocalyptic number.

3221444431 is a deficient number, since it is larger than the sum of its proper divisors (1).

3221444431 is an equidigital number, since it uses as much as digits as its factorization.

3221444431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9216, while the sum is 28.

The square root of 3221444431 is about 56757.7697852902. The cubic root of 3221444431 is about 1476.8970219225.

Adding to 3221444431 its reverse (1344441223), we get a palindrome (4565885654).

The spelling of 3221444431 in words is "three billion, two hundred twenty-one million, four hundred forty-four thousand, four hundred thirty-one".