12112223 has 4 divisors (see below), whose sum is σ = 12232248. Its totient is φ = 11992200.

The previous prime is 12112187. The next prime is 12112231. The reversal of 12112223 is 32221121.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12112223 - 2⁶ = 12112159 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12112198 and 12112207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12112423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59861 + ... + 60062.

It is an arithmetic number, because the mean of its divisors is an integer number (3058062).

Almost surely, 2^12112223 is an apocalyptic number.

12112223 is a deficient number, since it is larger than the sum of its proper divisors (120025).

12112223 is a wasteful number, since it uses less digits than its factorization.

12112223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120024.

The product of its digits is 48, while the sum is 14.

The square root of 12112223 is about 3480.2619154311. The cubic root of 12112223 is about 229.6543200379.

Adding to 12112223 its reverse (32221121), we get a palindrome (44333344).

The spelling of 12112223 in words is "twelve million, one hundred twelve thousand, two hundred twenty-three".