212466260291 has 2 divisors, whose sum is σ = 212466260292. Its totient is φ = 212466260290.

The previous prime is 212466260221. The next prime is 212466260297. The reversal of 212466260291 is 192062664212.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212466260291 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (212466260297) 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, 106233130145 + 106233130146.

It is an arithmetic number, because the mean of its divisors is an integer number (106233130146).

Almost surely, 2^212466260291 is an apocalyptic number.

212466260291 is a deficient number, since it is larger than the sum of its proper divisors (1).

212466260291 is an equidigital number, since it uses as much as digits as its factorization.

212466260291 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 124416, while the sum is 41.

The spelling of 212466260291 in words is "two hundred twelve billion, four hundred sixty-six million, two hundred sixty thousand, two hundred ninety-one".