12112222022 has 8 divisors (see below), whose sum is σ = 18171447336. Its totient is φ = 6055072912.

The previous prime is 12112222021. The next prime is 12112222039. The reversal of 12112222022 is 22022221121.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12112222021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 504383 + ... + 527850.

It is an arithmetic number, because the mean of its divisors is an integer number (2271430917).

Almost surely, 2^12112222022 is an apocalyptic number.

12112222022 is a deficient number, since it is larger than the sum of its proper divisors (6059225314).

12112222022 is a wasteful number, since it uses less digits than its factorization.

12112222022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1038102.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 12112222022 its reverse (22022221121), we get a palindrome (34134443143).

Subtracting 12112222022 from its reverse (22022221121), we obtain a palindrome (9909999099).

The spelling of 12112222022 in words is "twelve billion, one hundred twelve million, two hundred twenty-two thousand, twenty-two".