211214111 has 2 divisors, whose sum is σ = 211214112. Its totient is φ = 211214110.

The previous prime is 211214077. The next prime is 211214161. The reversal of 211214111 is 111412112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 211214111 - 2¹⁰ = 211213087 is a prime.

It is a super-2 number, since 2×211214111² = 89222801371040642, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211214161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105607055 + 105607056.

It is an arithmetic number, because the mean of its divisors is an integer number (105607056).

Almost surely, 2^211214111 is an apocalyptic number.

211214111 is a deficient number, since it is larger than the sum of its proper divisors (1).

211214111 is an equidigital number, since it uses as much as digits as its factorization.

211214111 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16, while the sum is 14.

The square root of 211214111 is about 14533.2071821742. The cubic root of 211214111 is about 595.5354838503.

Adding to 211214111 its reverse (111412112), we get a palindrome (322626223).

The spelling of 211214111 in words is "two hundred eleven million, two hundred fourteen thousand, one hundred eleven".