12112122122 has 8 divisors (see below), whose sum is σ = 18554740416. Its totient is φ = 5927208652.

The previous prime is 12112122103. The next prime is 12112122131. The reversal of 12112122122 is 22122121121.

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

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 12112122122.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64426088 + ... + 64426275.

It is an arithmetic number, because the mean of its divisors is an integer number (2319342552).

Almost surely, 2^12112122122 is an apocalyptic number.

12112122122 is a deficient number, since it is larger than the sum of its proper divisors (6442618294).

12112122122 is a wasteful number, since it uses less digits than its factorization.

12112122122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128852412.

The product of its digits is 64, while the sum is 17.

Adding to 12112122122 its reverse (22122121121), we get a palindrome (34234243243).

The spelling of 12112122122 in words is "twelve billion, one hundred twelve million, one hundred twenty-two thousand, one hundred twenty-two".