12213203123197 has 2 divisors, whose sum is σ = 12213203123198. Its totient is φ = 12213203123196.

The previous prime is 12213203123183. The next prime is 12213203123203. The reversal of 12213203123197 is 79132130231221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8767201214916 + 3446001908281 = 2960946^2 + 1856341^2 .

It is a cyclic number.

It is not a de Polignac number, because 12213203123197 - 2²³ = 12213194734589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12213203123117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6106601561598 + 6106601561599.

It is an arithmetic number, because the mean of its divisors is an integer number (6106601561599).

Almost surely, 2^{12213203123197} is an apocalyptic number.

It is an amenable number.

12213203123197 is a deficient number, since it is larger than the sum of its proper divisors (1).

12213203123197 is an equidigital number, since it uses as much as digits as its factorization.

12213203123197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27216, while the sum is 37.

The spelling of 12213203123197 in words is "twelve trillion, two hundred thirteen billion, two hundred three million, one hundred twenty-three thousand, one hundred ninety-seven".