13330330202221 has 2 divisors, whose sum is σ = 13330330202222. Its totient is φ = 13330330202220.

The previous prime is 13330330202177. The next prime is 13330330202243. The reversal of 13330330202221 is 12220203303331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7273755060100 + 6056575142121 = 2696990^2 + 2461011^2 .

It is a cyclic number.

It is not a de Polignac number, because 13330330202221 - 2⁹ = 13330330201709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13330330202261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6665165101110 + 6665165101111.

It is an arithmetic number, because the mean of its divisors is an integer number (6665165101111).

Almost surely, 2^{13330330202221} is an apocalyptic number.

It is an amenable number.

13330330202221 is a deficient number, since it is larger than the sum of its proper divisors (1).

13330330202221 is an equidigital number, since it uses as much as digits as its factorization.

13330330202221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 13330330202221 its reverse (12220203303331), we get a palindrome (25550533505552).

The spelling of 13330330202221 in words is "thirteen trillion, three hundred thirty billion, three hundred thirty million, two hundred two thousand, two hundred twenty-one".