12200166 has 128 divisors (see below), whose sum is σ = 33177600. Its totient is φ = 3278880.

The previous prime is 12200137. The next prime is 12200171. The reversal of 12200166 is 66100221.

It is a happy number.

12200166 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

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 63 ways as a sum of consecutive naturals, for example, 259555 + ... + 259601.

It is an arithmetic number, because the mean of its divisors is an integer number (259200).

Almost surely, 2^12200166 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12200166, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16588800).

12200166 is an abundant number, since it is smaller than the sum of its proper divisors (20977434).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12200166 is a wasteful number, since it uses less digits than its factorization.

12200166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111 (or 105 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 12200166 is about 3492.8736020646. The cubic root of 12200166 is about 230.2087959032.

Adding to 12200166 its reverse (66100221), we get a palindrome (78300387).

The spelling of 12200166 in words is "twelve million, two hundred thousand, one hundred sixty-six".