12126227 has 4 divisors (see below), whose sum is σ = 12151416. Its totient is φ = 12101040.

The previous prime is 12126223. The next prime is 12126299. The reversal of 12126227 is 72262121.

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 12126227 - 2² = 12126223 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12126223) 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, 11858 + ... + 12839.

It is an arithmetic number, because the mean of its divisors is an integer number (3037854).

Almost surely, 2^12126227 is an apocalyptic number.

12126227 is a deficient number, since it is larger than the sum of its proper divisors (25189).

12126227 is an equidigital number, since it uses as much as digits as its factorization.

12126227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25188.

The product of its digits is 672, while the sum is 23.

The square root of 12126227 is about 3482.2732517710. The cubic root of 12126227 is about 229.7427937620.

Adding to 12126227 its reverse (72262121), we get a palindrome (84388348).

The spelling of 12126227 in words is "twelve million, one hundred twenty-six thousand, two hundred twenty-seven".