12022561226321 has 2 divisors, whose sum is σ = 12022561226322. Its totient is φ = 12022561226320.

The previous prime is 12022561226261. The next prime is 12022561226353. The reversal of 12022561226321 is 12362216522021.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9943370262721 + 2079190963600 = 3153311^2 + 1441940^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12022561226321 is a prime.

It is not a weakly prime, because it can be changed into another prime (12022561226371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6011280613160 + 6011280613161.

It is an arithmetic number, because the mean of its divisors is an integer number (6011280613161).

Almost surely, 2^{12022561226321} is an apocalyptic number.

It is an amenable number.

12022561226321 is a deficient number, since it is larger than the sum of its proper divisors (1).

12022561226321 is an equidigital number, since it uses as much as digits as its factorization.

12022561226321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34560, while the sum is 35.

Adding to 12022561226321 its reverse (12362216522021), we get a palindrome (24384777748342).

The spelling of 12022561226321 in words is "twelve trillion, twenty-two billion, five hundred sixty-one million, two hundred twenty-six thousand, three hundred twenty-one".