212956322399 has 2 divisors, whose sum is σ = 212956322400. Its totient is φ = 212956322398.

The previous prime is 212956322377. The next prime is 212956322413. The reversal of 212956322399 is 993223659212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 212956322399 - 2²⁰ = 212955273823 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 212956322399.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212956321399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106478161199 + 106478161200.

It is an arithmetic number, because the mean of its divisors is an integer number (106478161200).

Almost surely, 2^212956322399 is an apocalyptic number.

212956322399 is a deficient number, since it is larger than the sum of its proper divisors (1).

212956322399 is an equidigital number, since it uses as much as digits as its factorization.

212956322399 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3149280, while the sum is 53.

The spelling of 212956322399 in words is "two hundred twelve billion, nine hundred fifty-six million, three hundred twenty-two thousand, three hundred ninety-nine".