12112122202012 has 72 divisors (see below), whose sum is σ = 24914269109184. Its totient is φ = 5136723744768.

The previous prime is 12112122201953. The next prime is 12112122202039. The reversal of 12112122202012 is 21020222121121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 162077968 + ... + 162152680.

Almost surely, 2^{12112122202012} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12112122202012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12457134554592).

12112122202012 is an abundant number, since it is smaller than the sum of its proper divisors (12802146907172).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12112122202012 is a wasteful number, since it uses less digits than its factorization.

12112122202012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83355 (or 83346 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 12112122202012 its reverse (21020222121121), we get a palindrome (33132344323133).

The spelling of 12112122202012 in words is "twelve trillion, one hundred twelve billion, one hundred twenty-two million, two hundred two thousand, twelve".