3112232221 has 16 divisors (see below), whose sum is σ = 3583880064. Its totient is φ = 2647425024.

The previous prime is 3112232213. The next prime is 3112232251. The reversal of 3112232221 is 1222322113.

It is a cyclic number.

It is not a de Polignac number, because 3112232221 - 2³ = 3112232213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3112232251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 506061 + ... + 512173.

It is an arithmetic number, because the mean of its divisors is an integer number (223992504).

Almost surely, 2^3112232221 is an apocalyptic number.

It is an amenable number.

3112232221 is a deficient number, since it is larger than the sum of its proper divisors (471647843).

3112232221 is a wasteful number, since it uses less digits than its factorization.

3112232221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6660.

The product of its digits is 288, while the sum is 19.

The square root of 3112232221 is about 55787.3840666508. The cubic root of 3112232221 is about 1460.0150466017.

Adding to 3112232221 its reverse (1222322113), we get a palindrome (4334554334).

The spelling of 3112232221 in words is "three billion, one hundred twelve million, two hundred thirty-two thousand, two hundred twenty-one".