210221010211189 has 2 divisors, whose sum is σ = 210221010211190. Its totient is φ = 210221010211188.

The previous prime is 210221010211181. The next prime is 210221010211207. The reversal of 210221010211189 is 981112010122012.

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., 127930984392964 + 82290025818225 = 11310658^2 + 9071385^2 .

It is a cyclic number.

It is not a de Polignac number, because 210221010211189 - 2³ = 210221010211181 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 210221010211189.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210221010211181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105110505105594 + 105110505105595.

It is an arithmetic number, because the mean of its divisors is an integer number (105110505105595).

Almost surely, 2^{210221010211189} is an apocalyptic number.

It is an amenable number.

210221010211189 is a deficient number, since it is larger than the sum of its proper divisors (1).

210221010211189 is an equidigital number, since it uses as much as digits as its factorization.

210221010211189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 31.

The spelling of 210221010211189 in words is "two hundred ten trillion, two hundred twenty-one billion, ten million, two hundred eleven thousand, one hundred eighty-nine".