13310444240221 has 2 divisors, whose sum is σ = 13310444240222. Its totient is φ = 13310444240220.

The previous prime is 13310444240189. The next prime is 13310444240273. The reversal of 13310444240221 is 12204244401331.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9244555116196 + 4065889124025 = 3040486^2 + 2016405^2 .

It is a cyclic number.

It is not a de Polignac number, because 13310444240221 - 2⁵ = 13310444240189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13310444240021) 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, 6655222120110 + 6655222120111.

It is an arithmetic number, because the mean of its divisors is an integer number (6655222120111).

Almost surely, 2^{13310444240221} is an apocalyptic number.

It is an amenable number.

13310444240221 is a deficient number, since it is larger than the sum of its proper divisors (1).

13310444240221 is an equidigital number, since it uses as much as digits as its factorization.

13310444240221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18432, while the sum is 31.

Adding to 13310444240221 its reverse (12204244401331), we get a palindrome (25514688641552).

The spelling of 13310444240221 in words is "thirteen trillion, three hundred ten billion, four hundred forty-four million, two hundred forty thousand, two hundred twenty-one".