212320212287 has 2 divisors, whose sum is σ = 212320212288. Its totient is φ = 212320212286.

The previous prime is 212320212263. The next prime is 212320212289. The reversal of 212320212287 is 782212023212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 212320212287 - 2⁸ = 212320212031 is a prime.

Together with 212320212289, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212320212289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106160106143 + 106160106144.

It is an arithmetic number, because the mean of its divisors is an integer number (106160106144).

Almost surely, 2^212320212287 is an apocalyptic number.

212320212287 is a deficient number, since it is larger than the sum of its proper divisors (1).

212320212287 is an equidigital number, since it uses as much as digits as its factorization.

212320212287 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10752, while the sum is 32.

Adding to 212320212287 its reverse (782212023212), we get a palindrome (994532235499).

The spelling of 212320212287 in words is "two hundred twelve billion, three hundred twenty million, two hundred twelve thousand, two hundred eighty-seven".