12112101112112 has 20 divisors (see below), whose sum is σ = 23530110650640. Its totient is φ = 6039814492608.

The previous prime is 12112101112103. The next prime is 12112101112127. The reversal of 12112101112112 is 21121110121121.

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, 1014747812 + ... + 1014759747.

It is an arithmetic number, because the mean of its divisors is an integer number (1176505532532).

Almost surely, 2^{12112101112112} is an apocalyptic number.

It is an amenable number.

12112101112112 is a deficient number, since it is larger than the sum of its proper divisors (11418009538528).

12112101112112 is a wasteful number, since it uses less digits than its factorization.

12112101112112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2029507940 (or 2029507934 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 12112101112112 its reverse (21121110121121), we get a palindrome (33233211233233).

Subtracting 12112101112112 from its reverse (21121110121121), we obtain a palindrome (9009009009009).

The spelling of 12112101112112 in words is "twelve trillion, one hundred twelve billion, one hundred one million, one hundred twelve thousand, one hundred twelve".