3112023221 has 16 divisors (see below), whose sum is σ = 3184066560. Its totient is φ = 3040979760.

The previous prime is 3112023191. The next prime is 3112023241. The reversal of 3112023221 is 1223202113.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3112023221 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3112023221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3112023241) 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, 4931576 + ... + 4932206.

It is an arithmetic number, because the mean of its divisors is an integer number (199004160).

Almost surely, 2^3112023221 is an apocalyptic number.

It is an amenable number.

3112023221 is a deficient number, since it is larger than the sum of its proper divisors (72043339).

3112023221 is a wasteful number, since it uses less digits than its factorization.

3112023221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1256.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 3112023221 is about 55785.5108518332. The cubic root of 3112023221 is about 1459.9823637389.

Adding to 3112023221 its reverse (1223202113), we get a palindrome (4335225334).

The spelling of 3112023221 in words is "three billion, one hundred twelve million, twenty-three thousand, two hundred twenty-one".