12212642213 has 2 divisors, whose sum is σ = 12212642214. Its totient is φ = 12212642212.

The previous prime is 12212642191. The next prime is 12212642219. The reversal of 12212642213 is 31224621221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10528196449 + 1684445764 = 102607^2 + 41042^2 .

It is a cyclic number.

It is not a de Polignac number, because 12212642213 - 2⁸ = 12212641957 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12212642219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6106321106 + 6106321107.

It is an arithmetic number, because the mean of its divisors is an integer number (6106321107).

Almost surely, 2^12212642213 is an apocalyptic number.

It is an amenable number.

12212642213 is a deficient number, since it is larger than the sum of its proper divisors (1).

12212642213 is an equidigital number, since it uses as much as digits as its factorization.

12212642213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2304, while the sum is 26.

The spelling of 12212642213 in words is "twelve billion, two hundred twelve million, six hundred forty-two thousand, two hundred thirteen".