3221431224 has 64 divisors (see below), whose sum is σ = 8790768000. Its totient is φ = 975630720.

The previous prime is 3221431219. The next prime is 3221431231. The reversal of 3221431224 is 4221341223.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 3221431194 and 3221431203.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 850567 + ... + 854345.

It is an arithmetic number, because the mean of its divisors is an integer number (137355750).

Almost surely, 2^3221431224 is an apocalyptic number.

It is an amenable number.

3221431224 is an abundant number, since it is smaller than the sum of its proper divisors (5569336776).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3221431224 is a wasteful number, since it uses less digits than its factorization.

3221431224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7028 (or 7024 counting only the distinct ones).

The product of its digits is 2304, while the sum is 24.

The square root of 3221431224 is about 56757.6534398666. The cubic root of 3221431224 is about 1476.8950036347.

Adding to 3221431224 its reverse (4221341223), we get a palindrome (7442772447).

Subtracting 3221431224 from its reverse (4221341223), we obtain a palindrome (999909999).

The spelling of 3221431224 in words is "three billion, two hundred twenty-one million, four hundred thirty-one thousand, two hundred twenty-four".