12223210320121 has 2 divisors, whose sum is σ = 12223210320122. Its totient is φ = 12223210320120.

The previous prime is 12223210320091. The next prime is 12223210320157. The reversal of 12223210320121 is 12102301232221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6668402405625 + 5554807914496 = 2582325^2 + 2356864^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12223210320121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12223210320092 and 12223210320101.

It is not a weakly prime, because it can be changed into another prime (12223210320161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6111605160060 + 6111605160061.

It is an arithmetic number, because the mean of its divisors is an integer number (6111605160061).

Almost surely, 2^{12223210320121} is an apocalyptic number.

It is an amenable number.

12223210320121 is a deficient number, since it is larger than the sum of its proper divisors (1).

12223210320121 is an equidigital number, since it uses as much as digits as its factorization.

12223210320121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 12223210320121 its reverse (12102301232221), we get a palindrome (24325511552342).

The spelling of 12223210320121 in words is "twelve trillion, two hundred twenty-three billion, two hundred ten million, three hundred twenty thousand, one hundred twenty-one".