12127216 has 10 divisors (see below), whose sum is σ = 23496512. Its totient is φ = 6063600.

The previous prime is 12127207. The next prime is 12127217. The reversal of 12127216 is 61272121.

It is a happy number.

12127216 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12127217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 378960 + ... + 378991.

Almost surely, 2^12127216 is an apocalyptic number.

12127216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12127216 is a deficient number, since it is larger than the sum of its proper divisors (11369296).

12127216 is an equidigital number, since it uses as much as digits as its factorization.

12127216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 757959 (or 757953 counting only the distinct ones).

The product of its digits is 336, while the sum is 22.

The square root of 12127216 is about 3482.4152538145. The cubic root of 12127216 is about 229.7490394378.

Adding to 12127216 its reverse (61272121), we get a palindrome (73399337).

The spelling of 12127216 in words is "twelve million, one hundred twenty-seven thousand, two hundred sixteen".