13331012130221 has 2 divisors, whose sum is σ = 13331012130222. Its totient is φ = 13331012130220.

The previous prime is 13331012130119. The next prime is 13331012130263. The reversal of 13331012130221 is 12203121013331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13192077768100 + 138934362121 = 3632090^2 + 372739^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13331012130221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13331012130421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6665506065110 + 6665506065111.

It is an arithmetic number, because the mean of its divisors is an integer number (6665506065111).

Almost surely, 2^{13331012130221} is an apocalyptic number.

It is an amenable number.

13331012130221 is a deficient number, since it is larger than the sum of its proper divisors (1).

13331012130221 is an equidigital number, since it uses as much as digits as its factorization.

13331012130221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 13331012130221 its reverse (12203121013331), we get a palindrome (25534133143552).

The spelling of 13331012130221 in words is "thirteen trillion, three hundred thirty-one billion, twelve million, one hundred thirty thousand, two hundred twenty-one".