12232221310121 has 2 divisors, whose sum is σ = 12232221310122. Its totient is φ = 12232221310120.

The previous prime is 12232221310087. The next prime is 12232221310123. The reversal of 12232221310121 is 12101312223221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12228057834496 + 4163475625 = 3496864^2 + 64525^2 .

It is a cyclic number.

It is not a de Polignac number, because 12232221310121 - 2²² = 12232217115817 is a prime.

Together with 12232221310123, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12232221310123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6116110655060 + 6116110655061.

It is an arithmetic number, because the mean of its divisors is an integer number (6116110655061).

Almost surely, 2^{12232221310121} is an apocalyptic number.

It is an amenable number.

12232221310121 is a deficient number, since it is larger than the sum of its proper divisors (1).

12232221310121 is an equidigital number, since it uses as much as digits as its factorization.

12232221310121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 12232221310121 its reverse (12101312223221), we get a palindrome (24333533533342).

The spelling of 12232221310121 in words is "twelve trillion, two hundred thirty-two billion, two hundred twenty-one million, three hundred ten thousand, one hundred twenty-one".