211 (two hundred [and] eleven) is the natural number following 210 and preceding 212. It is also a prime number.
In mathematics 211 is the sum of three consecutive primes ( 67 + 71 + 73 {\displaystyle 67+71+73} ), a Chen prime, a centered decagonal prime, and a self prime. 211 is the smallest prime separated by 12 from the nearest primes (199 and 223). It is thus a balanced prime and an isolated prime. 211 is a repdigit in tetradecimal (111). 211 is the 47th prime number and therefore it is a super-prime. 211 is the fourth Euclid number, being 2 × 3 × 5 × 7 + 1 {\displaystyle 2\times 3\times 5\times 7+1} .
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