211271 has 2 divisors, whose sum is σ = 211272. Its totient is φ = 211270.

The previous prime is 211247. The next prime is 211283. The reversal of 211271 is 172112.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 211271 - 2¹⁰ = 210247 is a prime.

It is a Chen prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105635 + 105636.

It is an arithmetic number, because the mean of its divisors is an integer number (105636).

2²¹¹²⁷¹ is an apocalyptic number.

211271 is a deficient number, since it is larger than the sum of its proper divisors (1).

211271 is an equidigital number, since it uses as much as digits as its factorization.

211271 is an evil number, because the sum of its binary digits is even.

The product of its digits is 28, while the sum is 14.

The square root of 211271 is about 459.6422521919. The cubic root of 211271 is about 59.5588946782.

Adding to 211271 its reverse (172112), we get a palindrome (383383).

The spelling of 211271 in words is "two hundred eleven thousand, two hundred seventy-one", and thus it is an iban number.