2201166 has 24 divisors (see below), whose sum is σ = 5203224. Its totient is φ = 666960.

The previous prime is 2201161. The next prime is 2201183. The reversal of 2201166 is 6611022.

It is a happy number.

It is a hoax number, since the sum of its digits (18) coincides with the sum of the digits of its distinct prime factors.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2201161) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5361 + ... + 5756.

It is an arithmetic number, because the mean of its divisors is an integer number (216801).

2^2201166 is an apocalyptic number.

2201166 is an abundant number, since it is smaller than the sum of its proper divisors (3002058).

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

2201166 is a wasteful number, since it uses less digits than its factorization.

2201166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11136 (or 11133 counting only the distinct ones).

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

The square root of 2201166 is about 1483.6327038725. The cubic root of 2201166 is about 130.0821177426.

Subtracting from 2201166 its product of nonzero digits (144), we obtain a palindrome (2201022).

Adding to 2201166 its reverse (6611022), we get a palindrome (8812188).

The spelling of 2201166 in words is "two million, two hundred one thousand, one hundred sixty-six".