12214166 has 4 divisors (see below), whose sum is σ = 18321252. Its totient is φ = 6107082.

The previous prime is 12214159. The next prime is 12214171. The reversal of 12214166 is 66141221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 66141221 = 4831 ⋅13691.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3053540 + ... + 3053543.

It is an arithmetic number, because the mean of its divisors is an integer number (4580313).

Almost surely, 2^12214166 is an apocalyptic number.

12214166 is a deficient number, since it is larger than the sum of its proper divisors (6107086).

12214166 is an equidigital number, since it uses as much as digits as its factorization.

12214166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6107085.

The product of its digits is 576, while the sum is 23.

The square root of 12214166 is about 3494.8771079968. The cubic root of 12214166 is about 230.2968190534.

Adding to 12214166 its reverse (66141221), we get a palindrome (78355387).

The spelling of 12214166 in words is "twelve million, two hundred fourteen thousand, one hundred sixty-six".