12166222 has 8 divisors (see below), whose sum is σ = 18264456. Its totient is φ = 6078072.

The previous prime is 12166207. The next prime is 12166243. The reversal of 12166222 is 22266121.

12166222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 12166193 and 12166202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2488 + ... + 5524.

It is an arithmetic number, because the mean of its divisors is an integer number (2283057).

Almost surely, 2^12166222 is an apocalyptic number.

12166222 is a deficient number, since it is larger than the sum of its proper divisors (6098234).

12166222 is a wasteful number, since it uses less digits than its factorization.

12166222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5042.

The product of its digits is 576, while the sum is 22.

The square root of 12166222 is about 3488.0111811747. The cubic root of 12166222 is about 229.9950975641.

The spelling of 12166222 in words is "twelve million, one hundred sixty-six thousand, two hundred twenty-two".