210221112010597 has 2 divisors, whose sum is σ = 210221112010598. Its totient is φ = 210221112010596.

The previous prime is 210221112010589. The next prime is 210221112010607. The reversal of 210221112010597 is 795010211122012.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 169919932491556 + 40301179519041 = 13035334^2 + 6348321^2 .

It is a cyclic number.

It is not a de Polignac number, because 210221112010597 - 2³ = 210221112010589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210221112014597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105110556005298 + 105110556005299.

It is an arithmetic number, because the mean of its divisors is an integer number (105110556005299).

Almost surely, 2^{210221112010597} is an apocalyptic number.

It is an amenable number.

210221112010597 is a deficient number, since it is larger than the sum of its proper divisors (1).

210221112010597 is an equidigital number, since it uses as much as digits as its factorization.

210221112010597 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5040, while the sum is 34.

The spelling of 210221112010597 in words is "two hundred ten trillion, two hundred twenty-one billion, one hundred twelve million, ten thousand, five hundred ninety-seven".