12271 has 4 divisors (see below), whose sum is σ = 14032. Its totient is φ = 10512.

The previous prime is 12269. The next prime is 12277. The reversal of 12271 is 17221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17221 = 17 ⋅1013.

It is a cyclic number.

It is not a de Polignac number, because 12271 - 2¹ = 12269 is a prime.

It is a Duffinian number.

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12277) 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, 870 + ... + 883.

It is an arithmetic number, because the mean of its divisors is an integer number (3508).

2¹²²⁷¹ is an apocalyptic number.

12271 is a deficient number, since it is larger than the sum of its proper divisors (1761).

12271 is an equidigital number, since it uses as much as digits as its factorization.

12271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1760.

The product of its digits is 28, while the sum is 13.

The square root of 12271 is about 110.7745458127. The cubic root of 12271 is about 23.0653466153.

Adding to 12271 its reverse (17221), we get a palindrome (29492).

Subtracting 12271 from its reverse (17221), we obtain a triangular number (4950 = T₉₉).

The spelling of 12271 in words is "twelve thousand, two hundred seventy-one", and thus it is an iban number.