12112021223 has 4 divisors (see below), whose sum is σ = 12112958280. Its totient is φ = 12111084168.

The previous prime is 12112021189. The next prime is 12112021231. The reversal of 12112021223 is 32212021121.

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 12112021223 - 2⁸ = 12112020967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12112021723) 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, 448865 + ... + 475082.

It is an arithmetic number, because the mean of its divisors is an integer number (3028239570).

Almost surely, 2^12112021223 is an apocalyptic number.

12112021223 is a deficient number, since it is larger than the sum of its proper divisors (937057).

12112021223 is an equidigital number, since it uses as much as digits as its factorization.

12112021223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 937056.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 12112021223 its reverse (32212021121), we get a palindrome (44324042344).

The spelling of 12112021223 in words is "twelve billion, one hundred twelve million, twenty-one thousand, two hundred twenty-three".