212212323212213 has 2 divisors, whose sum is σ = 212212323212214. Its totient is φ = 212212323212212.

The previous prime is 212212323212203. The next prime is 212212323212233. The reversal of 212212323212213 is 312212323212212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 209853988650244 + 2358334561969 = 14486338^2 + 1535687^2 .

It is a cyclic number.

It is not a de Polignac number, because 212212323212213 - 2²⁶ = 212212256103349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212212323212203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106106161606106 + 106106161606107.

It is an arithmetic number, because the mean of its divisors is an integer number (106106161606107).

Almost surely, 2^{212212323212213} is an apocalyptic number.

It is an amenable number.

212212323212213 is a deficient number, since it is larger than the sum of its proper divisors (1).

212212323212213 is an equidigital number, since it uses as much as digits as its factorization.

212212323212213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6912, while the sum is 29.

Adding to 212212323212213 its reverse (312212323212212), we get a palindrome (524424646424425).

Subtracting 212212323212213 from its reverse (312212323212212), we obtain a palindrome (99999999999999).

The spelling of 212212323212213 in words is "two hundred twelve trillion, two hundred twelve billion, three hundred twenty-three million, two hundred twelve thousand, two hundred thirteen".