212168902571 has 2 divisors, whose sum is σ = 212168902572. Its totient is φ = 212168902570.

The previous prime is 212168902553. The next prime is 212168902597. The reversal of 212168902571 is 175209861212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212168902571 - 2¹⁰ = 212168901547 is a prime.

It is not a weakly prime, because it can be changed into another prime (212168302571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106084451285 + 106084451286.

It is an arithmetic number, because the mean of its divisors is an integer number (106084451286).

Almost surely, 2^212168902571 is an apocalyptic number.

212168902571 is a deficient number, since it is larger than the sum of its proper divisors (1).

212168902571 is an equidigital number, since it uses as much as digits as its factorization.

212168902571 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120960, while the sum is 44.

The spelling of 212168902571 in words is "two hundred twelve billion, one hundred sixty-eight million, nine hundred two thousand, five hundred seventy-one".