12182206 has 4 divisors (see below), whose sum is σ = 18273312. Its totient is φ = 6091102.

The previous prime is 12182189. The next prime is 12182243. The reversal of 12182206 is 60228121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 60228121 = 521 ⋅115601.

It is a super-2 number, since 2×12182206² = 296812286052872, which contains 22 as substring.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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, 3045550 + ... + 3045553.

It is an arithmetic number, because the mean of its divisors is an integer number (4568328).

Almost surely, 2^12182206 is an apocalyptic number.

12182206 is a deficient number, since it is larger than the sum of its proper divisors (6091106).

12182206 is an equidigital number, since it uses as much as digits as its factorization.

12182206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6091105.

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 12182206 is about 3490.3017061566. The cubic root of 12182206 is about 230.0957761166.

The spelling of 12182206 in words is "twelve million, one hundred eighty-two thousand, two hundred six".