82211 has 4 divisors (see below), whose sum is σ = 82800. Its totient is φ = 81624.

The previous prime is 82207. The next prime is 82217. The reversal of 82211 is 11228.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 82211 - 2² = 82207 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (82217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50 + ... + 408.

It is an arithmetic number, because the mean of its divisors is an integer number (20700).

2⁸²²¹¹ is an apocalyptic number.

82211 is a deficient number, since it is larger than the sum of its proper divisors (589).

82211 is a wasteful number, since it uses less digits than its factorization.

82211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 588.

The product of its digits is 32, while the sum is 14.

The square root of 82211 is about 286.7246065478. The cubic root of 82211 is about 43.4820465834.

Adding to 82211 its reverse (11228), we get a palindrome (93439).

The spelling of 82211 in words is "eighty-two thousand, two hundred eleven".