3130112231221 has 2 divisors, whose sum is σ = 3130112231222. Its totient is φ = 3130112231220.

The previous prime is 3130112231189. The next prime is 3130112231261. The reversal of 3130112231221 is 1221322110313.

3130112231221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2980149668721 + 149962562500 = 1726311^2 + 387250^2 .

It is a cyclic number.

It is not a de Polignac number, because 3130112231221 - 2⁵ = 3130112231189 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3130112231192 and 3130112231201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3130112231261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1565056115610 + 1565056115611.

It is an arithmetic number, because the mean of its divisors is an integer number (1565056115611).

Almost surely, 2^{3130112231221} is an apocalyptic number.

It is an amenable number.

3130112231221 is a deficient number, since it is larger than the sum of its proper divisors (1).

3130112231221 is an equidigital number, since it uses as much as digits as its factorization.

3130112231221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 3130112231221 its reverse (1221322110313), we get a palindrome (4351434341534).

The spelling of 3130112231221 in words is "three trillion, one hundred thirty billion, one hundred twelve million, two hundred thirty-one thousand, two hundred twenty-one".