210221211010163 has 2 divisors, whose sum is σ = 210221211010164. Its totient is φ = 210221211010162.

The previous prime is 210221211010133. The next prime is 210221211010247. The reversal of 210221211010163 is 361010112122012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 210221211010163 - 2¹² = 210221211006067 is a prime.

It is not a weakly prime, because it can be changed into another prime (210221211010133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105110605505081 + 105110605505082.

It is an arithmetic number, because the mean of its divisors is an integer number (105110605505082).

Almost surely, 2^{210221211010163} is an apocalyptic number.

210221211010163 is a deficient number, since it is larger than the sum of its proper divisors (1).

210221211010163 is an equidigital number, since it uses as much as digits as its factorization.

210221211010163 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 23.

Adding to 210221211010163 its reverse (361010112122012), we get a palindrome (571231323132175).

The spelling of 210221211010163 in words is "two hundred ten trillion, two hundred twenty-one billion, two hundred eleven million, ten thousand, one hundred sixty-three".