12226971 has 4 divisors (see below), whose sum is σ = 16302632. Its totient is φ = 8151312.

The previous prime is 12226967. The next prime is 12226993. The reversal of 12226971 is 17962221.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 12226971 - 2² = 12226967 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12226471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2037826 + ... + 2037831.

It is an arithmetic number, because the mean of its divisors is an integer number (4075658).

Almost surely, 2^12226971 is an apocalyptic number.

12226971 is a deficient number, since it is larger than the sum of its proper divisors (4075661).

12226971 is an equidigital number, since it uses as much as digits as its factorization.

12226971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4075660.

The product of its digits is 3024, while the sum is 30.

The square root of 12226971 is about 3496.7085952364. The cubic root of 12226971 is about 230.3772699232.

The spelling of 12226971 in words is "twelve million, two hundred twenty-six thousand, nine hundred seventy-one".