13300443305221 has 2 divisors, whose sum is σ = 13300443305222. Its totient is φ = 13300443305220.

The previous prime is 13300443305209. The next prime is 13300443305239. The reversal of 13300443305221 is 12250334400331.

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., 11353193302500 + 1947250002721 = 3369450^2 + 1395439^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13300443305221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13300443305521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6650221652610 + 6650221652611.

It is an arithmetic number, because the mean of its divisors is an integer number (6650221652611).

Almost surely, 2^{13300443305221} is an apocalyptic number.

It is an amenable number.

13300443305221 is a deficient number, since it is larger than the sum of its proper divisors (1).

13300443305221 is an equidigital number, since it uses as much as digits as its factorization.

13300443305221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25920, while the sum is 31.

Adding to 13300443305221 its reverse (12250334400331), we get a palindrome (25550777705552).

The spelling of 13300443305221 in words is "thirteen trillion, three hundred billion, four hundred forty-three million, three hundred five thousand, two hundred twenty-one".