12130020221321 has 2 divisors, whose sum is σ = 12130020221322. Its totient is φ = 12130020221320.

The previous prime is 12130020221257. The next prime is 12130020221359. The reversal of 12130020221321 is 12312202003121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7490971937296 + 4639048284025 = 2736964^2 + 2153845^2 .

It is an emirp because it is prime and its reverse (12312202003121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12130020221321 - 2⁶ = 12130020221257 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12130020221293 and 12130020221302.

It is not a weakly prime, because it can be changed into another prime (12130020227321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6065010110660 + 6065010110661.

It is an arithmetic number, because the mean of its divisors is an integer number (6065010110661).

Almost surely, 2^{12130020221321} is an apocalyptic number.

It is an amenable number.

12130020221321 is a deficient number, since it is larger than the sum of its proper divisors (1).

12130020221321 is an equidigital number, since it uses as much as digits as its factorization.

12130020221321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 12130020221321 its reverse (12312202003121), we get a palindrome (24442222224442).

The spelling of 12130020221321 in words is "twelve trillion, one hundred thirty billion, twenty million, two hundred twenty-one thousand, three hundred twenty-one".