3221253243 has 12 divisors (see below), whose sum is σ = 5010838560. Its totient is φ = 1982309616.

The previous prime is 3221253227. The next prime is 3221253311. The reversal of 3221253243 is 3423521223.

3221253243 is a `hidden beast` number, since 322 + 12 + 5 + 324 + 3 = 666.

It is not a de Polignac number, because 3221253243 - 2⁴ = 3221253227 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3221253223) 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, 13765923 + ... + 13766156.

It is an arithmetic number, because the mean of its divisors is an integer number (417569880).

Almost surely, 2^3221253243 is an apocalyptic number.

3221253243 is a deficient number, since it is larger than the sum of its proper divisors (1789585317).

3221253243 is a wasteful number, since it uses less digits than its factorization.

3221253243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27532098 (or 27532095 counting only the distinct ones).

The product of its digits is 8640, while the sum is 27.

The square root of 3221253243 is about 56756.0855151234. The cubic root of 3221253243 is about 1476.8678041208.

Adding to 3221253243 its reverse (3423521223), we get a palindrome (6644774466).

The spelling of 3221253243 in words is "three billion, two hundred twenty-one million, two hundred fifty-three thousand, two hundred forty-three".