212220233213 has 2 divisors, whose sum is σ = 212220233214. Its totient is φ = 212220233212.

The previous prime is 212220233207. The next prime is 212220233243. The reversal of 212220233213 is 312332022212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 161497085689 + 50723147524 = 401867^2 + 225218^2 .

It is a cyclic number.

It is not a de Polignac number, because 212220233213 - 2⁸ = 212220232957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212220233243) 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, 106110116606 + 106110116607.

It is an arithmetic number, because the mean of its divisors is an integer number (106110116607).

Almost surely, 2^212220233213 is an apocalyptic number.

It is an amenable number.

212220233213 is a deficient number, since it is larger than the sum of its proper divisors (1).

212220233213 is an equidigital number, since it uses as much as digits as its factorization.

212220233213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 212220233213 its reverse (312332022212), we get a palindrome (524552255425).

The spelling of 212220233213 in words is "two hundred twelve billion, two hundred twenty million, two hundred thirty-three thousand, two hundred thirteen".