3135315221 has 2 divisors, whose sum is σ = 3135315222. Its totient is φ = 3135315220.

The previous prime is 3135315203. The next prime is 3135315263. The reversal of 3135315221 is 1225135313.

3135315221 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., 1970116996 + 1165198225 = 44386^2 + 34135^2 .

It is a cyclic number.

It is not a de Polignac number, because 3135315221 - 2²² = 3131120917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3135315121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1567657610 + 1567657611.

It is an arithmetic number, because the mean of its divisors is an integer number (1567657611).

Almost surely, 2^3135315221 is an apocalyptic number.

It is an amenable number.

3135315221 is a deficient number, since it is larger than the sum of its proper divisors (1).

3135315221 is an equidigital number, since it uses as much as digits as its factorization.

3135315221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2700, while the sum is 26.

The square root of 3135315221 is about 55993.8855679797. The cubic root of 3135315221 is about 1463.6157364702.

The spelling of 3135315221 in words is "three billion, one hundred thirty-five million, three hundred fifteen thousand, two hundred twenty-one".