12022166 has 16 divisors (see below), whose sum is σ = 19477584. Its totient is φ = 5532384.

The previous prime is 12022159. The next prime is 12022181. The reversal of 12022166 is 66122021.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17261 + ... + 17943.

It is an arithmetic number, because the mean of its divisors is an integer number (1217349).

Almost surely, 2^12022166 is an apocalyptic number.

12022166 is a deficient number, since it is larger than the sum of its proper divisors (7455418).

12022166 is a wasteful number, since it uses less digits than its factorization.

12022166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1375.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 12022166 is about 3467.2995255674. The cubic root of 12022166 is about 229.0837270037.

Adding to 12022166 its reverse (66122021), we get a palindrome (78144187).

The spelling of 12022166 in words is "twelve million, twenty-two thousand, one hundred sixty-six".