12127227 has 16 divisors (see below), whose sum is σ = 18784512. Its totient is φ = 6815520.

The previous prime is 12127223. The next prime is 12127243. The reversal of 12127227 is 72272121.

It is not a de Polignac number, because 12127227 - 2² = 12127223 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12127197 and 12127206.

It is not an unprimeable number, because it can be changed into a prime (12127223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3453 + ... + 6014.

It is an arithmetic number, because the mean of its divisors is an integer number (1174032).

Almost surely, 2^12127227 is an apocalyptic number.

12127227 is a deficient number, since it is larger than the sum of its proper divisors (6657285).

12127227 is an equidigital number, since it uses as much as digits as its factorization.

12127227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9538.

The product of its digits is 784, while the sum is 24.

The square root of 12127227 is about 3482.4168331778. The cubic root of 12127227 is about 229.7491089024.

Adding to 12127227 its reverse (72272121), we get a palindrome (84399348).

The spelling of 12127227 in words is "twelve million, one hundred twenty-seven thousand, two hundred twenty-seven".