13313102221 has 2 divisors, whose sum is σ = 13313102222. Its totient is φ = 13313102220.

The previous prime is 13313102219. The next prime is 13313102227. The reversal of 13313102221 is 12220131331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7593205321 + 5719896900 = 87139^2 + 75630^2 .

It is a cyclic number.

It is not a de Polignac number, because 13313102221 - 2¹ = 13313102219 is a prime.

Together with 13313102219, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13313102227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6656551110 + 6656551111.

It is an arithmetic number, because the mean of its divisors is an integer number (6656551111).

Almost surely, 2^13313102221 is an apocalyptic number.

It is an amenable number.

13313102221 is a deficient number, since it is larger than the sum of its proper divisors (1).

13313102221 is an equidigital number, since it uses as much as digits as its factorization.

13313102221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 13313102221 its reverse (12220131331), we get a palindrome (25533233552).

The spelling of 13313102221 in words is "thirteen billion, three hundred thirteen million, one hundred two thousand, two hundred twenty-one".