8212227 has 4 divisors (see below), whose sum is σ = 10949640. Its totient is φ = 5474816.

The previous prime is 8212213. The next prime is 8212277. The reversal of 8212227 is 7222128.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 8212227 - 2⁶ = 8212163 is a prime.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 8212197 and 8212206.

It is not an unprimeable number, because it can be changed into a prime (8212277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1368702 + ... + 1368707.

It is an arithmetic number, because the mean of its divisors is an integer number (2737410).

Almost surely, 2^8212227 is an apocalyptic number.

8212227 is a deficient number, since it is larger than the sum of its proper divisors (2737413).

8212227 is a wasteful number, since it uses less digits than its factorization.

8212227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2737412.

The product of its digits is 896, while the sum is 24.

The square root of 8212227 is about 2865.6983442086. The cubic root of 8212227 is about 201.7531458291.

Subtracting from 8212227 its reverse (7222128), we obtain a palindrome (990099).

The spelling of 8212227 in words is "eight million, two hundred twelve thousand, two hundred twenty-seven".