12167222 has 4 divisors (see below), whose sum is σ = 18250836. Its totient is φ = 6083610.

The previous prime is 12167213. The next prime is 12167227. The reversal of 12167222 is 22276121.

It is a happy number.

12167222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12167227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3041804 + ... + 3041807.

It is an arithmetic number, because the mean of its divisors is an integer number (4562709).

Almost surely, 2^12167222 is an apocalyptic number.

12167222 is a deficient number, since it is larger than the sum of its proper divisors (6083614).

12167222 is an equidigital number, since it uses as much as digits as its factorization.

12167222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6083613.

The product of its digits is 672, while the sum is 23.

The square root of 12167222 is about 3488.1545263936. The cubic root of 12167222 is about 230.0013988573.

The spelling of 12167222 in words is "twelve million, one hundred sixty-seven thousand, two hundred twenty-two".