12213410443121 has 2 divisors, whose sum is σ = 12213410443122. Its totient is φ = 12213410443120.

The previous prime is 12213410443111. The next prime is 12213410443133. The reversal of 12213410443121 is 12134401431221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12001409133025 + 212001310096 = 3464305^2 + 460436^2 .

It is a cyclic number.

It is not a de Polignac number, because 12213410443121 - 2³⁰ = 12212336701297 is a prime.

It is not a weakly prime, because it can be changed into another prime (12213410443111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6106705221560 + 6106705221561.

It is an arithmetic number, because the mean of its divisors is an integer number (6106705221561).

Almost surely, 2^{12213410443121} is an apocalyptic number.

It is an amenable number.

12213410443121 is a deficient number, since it is larger than the sum of its proper divisors (1).

12213410443121 is an equidigital number, since it uses as much as digits as its factorization.

12213410443121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4608, while the sum is 29.

Adding to 12213410443121 its reverse (12134401431221), we get a palindrome (24347811874342).

The spelling of 12213410443121 in words is "twelve trillion, two hundred thirteen billion, four hundred ten million, four hundred forty-three thousand, one hundred twenty-one".