3112012323221 has 16 divisors (see below), whose sum is σ = 3136680505728. Its totient is φ = 3087462360000.

The previous prime is 3112012323143. The next prime is 3112012323227. The reversal of 3112012323221 is 1223232102113.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3112012323221 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 (3112012323227) 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, 76844240 + ... + 76884726.

It is an arithmetic number, because the mean of its divisors is an integer number (196042531608).

Almost surely, 2^{3112012323221} is an apocalyptic number.

It is an amenable number.

3112012323221 is a deficient number, since it is larger than the sum of its proper divisors (24668182507).

3112012323221 is a wasteful number, since it uses less digits than its factorization.

3112012323221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41932.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 3112012323221 its reverse (1223232102113), we get a palindrome (4335244425334).

The spelling of 3112012323221 in words is "three trillion, one hundred twelve billion, twelve million, three hundred twenty-three thousand, two hundred twenty-one".