12218303042213 has 2 divisors, whose sum is σ = 12218303042214. Its totient is φ = 12218303042212.

The previous prime is 12218303042161. The next prime is 12218303042317. The reversal of 12218303042213 is 31224030381221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8006421111844 + 4211881930369 = 2829562^2 + 2052287^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12218303042213 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12218303042213.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12218303012213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6109151521106 + 6109151521107.

It is an arithmetic number, because the mean of its divisors is an integer number (6109151521107).

Almost surely, 2^{12218303042213} is an apocalyptic number.

It is an amenable number.

12218303042213 is a deficient number, since it is larger than the sum of its proper divisors (1).

12218303042213 is an equidigital number, since it uses as much as digits as its factorization.

12218303042213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824, while the sum is 32.

The spelling of 12218303042213 in words is "twelve trillion, two hundred eighteen billion, three hundred three million, forty-two thousand, two hundred thirteen".