8212211 has 4 divisors (see below), whose sum is σ = 9385392. Its totient is φ = 7039032.

The previous prime is 8212189. The next prime is 8212213. The reversal of 8212211 is 1122128.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 8212211 - 2⁶ = 8212147 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8212211.

It is not an unprimeable number, because it can be changed into a prime (8212213) 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, 586580 + ... + 586593.

It is an arithmetic number, because the mean of its divisors is an integer number (2346348).

Almost surely, 2^8212211 is an apocalyptic number.

8212211 is a deficient number, since it is larger than the sum of its proper divisors (1173181).

8212211 is a wasteful number, since it uses less digits than its factorization.

8212211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1173180.

The product of its digits is 64, while the sum is 17.

The square root of 8212211 is about 2865.6955525666. The cubic root of 8212211 is about 201.7530148028.

Adding to 8212211 its reverse (1122128), we get a palindrome (9334339).

The spelling of 8212211 in words is "eight million, two hundred twelve thousand, two hundred eleven".