3130202221 has 2 divisors, whose sum is σ = 3130202222. Its totient is φ = 3130202220.

The previous prime is 3130202219. The next prime is 3130202263. The reversal of 3130202221 is 1222020313.

3130202221 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., 2504502025 + 625700196 = 50045^2 + 25014^2 .

It is a cyclic number.

It is not a de Polignac number, because 3130202221 - 2¹ = 3130202219 is a prime.

Together with 3130202219, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 3130202195 and 3130202204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3130202521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1565101110 + 1565101111.

It is an arithmetic number, because the mean of its divisors is an integer number (1565101111).

Almost surely, 2^3130202221 is an apocalyptic number.

It is an amenable number.

3130202221 is a deficient number, since it is larger than the sum of its proper divisors (1).

3130202221 is an equidigital number, since it uses as much as digits as its factorization.

3130202221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 3130202221 is about 55948.2101679759. The cubic root of 3130202221 is about 1462.8196932892.

Adding to 3130202221 its reverse (1222020313), we get a palindrome (4352222534).

The spelling of 3130202221 in words is "three billion, one hundred thirty million, two hundred two thousand, two hundred twenty-one".