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}
.