211163201 has 2 divisors, whose sum is σ = 211163202. Its totient is φ = 211163200.

The previous prime is 211163191. The next prime is 211163203. The reversal of 211163201 is 102361112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 150307600 + 60855601 = 12260^2 + 7801^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211163201 is a prime.

Together with 211163203, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 211163201.

It is not a weakly prime, because it can be changed into another prime (211163203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105581600 + 105581601.

It is an arithmetic number, because the mean of its divisors is an integer number (105581601).

Almost surely, 2^211163201 is an apocalyptic number.

It is an amenable number.

211163201 is a deficient number, since it is larger than the sum of its proper divisors (1).

211163201 is an equidigital number, since it uses as much as digits as its factorization.

211163201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 211163201 is about 14531.4555705889. The cubic root of 211163201 is about 595.4876317006.

The spelling of 211163201 in words is "two hundred eleven million, one hundred sixty-three thousand, two hundred one".