12271115 has 8 divisors (see below), whose sum is σ = 14975280. Its totient is φ = 9650272.

The previous prime is 12271099. The next prime is 12271123. The reversal of 12271115 is 51117221.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12271115 - 2⁴ = 12271099 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20504 + ... + 21093.

It is an arithmetic number, because the mean of its divisors is an integer number (1871910).

Almost surely, 2^12271115 is an apocalyptic number.

12271115 is a deficient number, since it is larger than the sum of its proper divisors (2704165).

12271115 is an equidigital number, since it uses as much as digits as its factorization.

12271115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41661.

The product of its digits is 140, while the sum is 20.

The square root of 12271115 is about 3503.0151298560. The cubic root of 12271115 is about 230.6541866886.

Adding to 12271115 its reverse (51117221), we get a palindrome (63388336).

The spelling of 12271115 in words is "twelve million, two hundred seventy-one thousand, one hundred fifteen".