2223166 has 16 divisors (see below), whose sum is σ = 3669120. Its totient is φ = 1001880.

The previous prime is 2223163. The next prime is 2223187. The reversal of 2223166 is 6613222.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2223161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2695 + ... + 3421.

It is an arithmetic number, because the mean of its divisors is an integer number (229320).

2^2223166 is an apocalyptic number.

2223166 is a deficient number, since it is larger than the sum of its proper divisors (1445954).

2223166 is a wasteful number, since it uses less digits than its factorization.

2223166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 879.

The product of its digits is 864, while the sum is 22.

The square root of 2223166 is about 1491.0285040870. The cubic root of 2223166 is about 130.5140592497.

Adding to 2223166 its reverse (6613222), we get a palindrome (8836388).

The spelling of 2223166 in words is "two million, two hundred twenty-three thousand, one hundred sixty-six".