12271268 has 6 divisors (see below), whose sum is σ = 21474726. Its totient is φ = 6135632.

The previous prime is 12271261. The next prime is 12271279. The reversal of 12271268 is 86217221.

It can be written as a sum of positive squares in only one way, i.e., 8076964 + 4194304 = 2842^2 + 2048^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12271268.

It is not an unprimeable number, because it can be changed into a prime (12271261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1533905 + ... + 1533912.

It is an arithmetic number, because the mean of its divisors is an integer number (3579121).

Almost surely, 2^12271268 is an apocalyptic number.

It is an amenable number.

12271268 is a deficient number, since it is larger than the sum of its proper divisors (9203458).

12271268 is a wasteful number, since it uses less digits than its factorization.

12271268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3067821 (or 3067819 counting only the distinct ones).

The product of its digits is 2688, while the sum is 29.

The square root of 12271268 is about 3503.0369681178. The cubic root of 12271268 is about 230.6551453068.

Adding to 12271268 its reverse (86217221), we get a palindrome (98488489).

The spelling of 12271268 in words is "twelve million, two hundred seventy-one thousand, two hundred sixty-eight".