13320211130221 has 2 divisors, whose sum is σ = 13320211130222. Its totient is φ = 13320211130220.

The previous prime is 13320211130159. The next prime is 13320211130227. The reversal of 13320211130221 is 12203111202331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13290501436996 + 29709693225 = 3645614^2 + 172365^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13320211130221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13320211130192 and 13320211130201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13320211130227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6660105565110 + 6660105565111.

It is an arithmetic number, because the mean of its divisors is an integer number (6660105565111).

Almost surely, 2^{13320211130221} is an apocalyptic number.

It is an amenable number.

13320211130221 is a deficient number, since it is larger than the sum of its proper divisors (1).

13320211130221 is an equidigital number, since it uses as much as digits as its factorization.

13320211130221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 13320211130221 its reverse (12203111202331), we get a palindrome (25523322332552).

The spelling of 13320211130221 in words is "thirteen trillion, three hundred twenty billion, two hundred eleven million, one hundred thirty thousand, two hundred twenty-one".