210203221271 has 2 divisors, whose sum is σ = 210203221272. Its totient is φ = 210203221270.

The previous prime is 210203221243. The next prime is 210203221337. The reversal of 210203221271 is 172122302012.

210203221271 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 210203221271 - 2¹⁰ = 210203220247 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210203221471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105101610635 + 105101610636.

It is an arithmetic number, because the mean of its divisors is an integer number (105101610636).

Almost surely, 2^210203221271 is an apocalyptic number.

210203221271 is a deficient number, since it is larger than the sum of its proper divisors (1).

210203221271 is an equidigital number, since it uses as much as digits as its factorization.

210203221271 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 23.

Adding to 210203221271 its reverse (172122302012), we get a palindrome (382325523283).

The spelling of 210203221271 in words is "two hundred ten billion, two hundred three million, two hundred twenty-one thousand, two hundred seventy-one".