12271067 has 4 divisors (see below), whose sum is σ = 12278136. Its totient is φ = 12264000.

The previous prime is 12271027. The next prime is 12271069. The reversal of 12271067 is 76017221.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 76017221 = 7 ⋅10859603.

It is a cyclic number.

It is not a de Polignac number, because 12271067 - 2⁶ = 12271003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12271069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1067 + ... + 5067.

It is an arithmetic number, because the mean of its divisors is an integer number (3069534).

Almost surely, 2^12271067 is an apocalyptic number.

12271067 is a deficient number, since it is larger than the sum of its proper divisors (7069).

12271067 is an equidigital number, since it uses as much as digits as its factorization.

12271067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7068.

The product of its (nonzero) digits is 1176, while the sum is 26.

The square root of 12271067 is about 3503.0082786085. The cubic root of 12271067 is about 230.6538859440.

Adding to 12271067 its reverse (76017221), we get a palindrome (88288288).

The spelling of 12271067 in words is "twelve million, two hundred seventy-one thousand, sixty-seven".