12211227 has 24 divisors (see below), whose sum is σ = 20267520. Its totient is φ = 6940080.

The previous prime is 12211223. The next prime is 12211231. The reversal of 12211227 is 72211221.

It is a happy number.

12211227 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12211223) and next prime (12211231).

It is not a de Polignac number, because 12211227 - 2² = 12211223 is a prime.

It is a super-2 number, since 2×12211227² = 298228129691058, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12211223) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14652 + ... + 15462.

It is an arithmetic number, because the mean of its divisors is an integer number (844480).

Almost surely, 2^12211227 is an apocalyptic number.

12211227 is a deficient number, since it is larger than the sum of its proper divisors (8056293).

12211227 is a wasteful number, since it uses less digits than its factorization.

12211227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1063 (or 1060 counting only the distinct ones).

The product of its digits is 112, while the sum is 18.

The square root of 12211227 is about 3494.4566101184. The cubic root of 12211227 is about 230.2783460594.

Adding to 12211227 its reverse (72211221), we get a palindrome (84422448).

The spelling of 12211227 in words is "twelve million, two hundred eleven thousand, two hundred twenty-seven".