212322333257 has 2 divisors, whose sum is σ = 212322333258. Its totient is φ = 212322333256.

The previous prime is 212322333241. The next prime is 212322333259. The reversal of 212322333257 is 752333223212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 145850665216 + 66471668041 = 381904^2 + 257821^2 .

It is a cyclic number.

It is not a de Polignac number, because 212322333257 - 2⁴ = 212322333241 is a prime.

Together with 212322333259, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (212322333259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106161166628 + 106161166629.

It is an arithmetic number, because the mean of its divisors is an integer number (106161166629).

Almost surely, 2^212322333257 is an apocalyptic number.

It is an amenable number.

212322333257 is a deficient number, since it is larger than the sum of its proper divisors (1).

212322333257 is an equidigital number, since it uses as much as digits as its factorization.

212322333257 is an evil number, because the sum of its binary digits is even.

The product of its digits is 90720, while the sum is 35.

Adding to 212322333257 its reverse (752333223212), we get a palindrome (964655556469).

The spelling of 212322333257 in words is "two hundred twelve billion, three hundred twenty-two million, three hundred thirty-three thousand, two hundred fifty-seven".