12112121001100 has 36 divisors (see below), whose sum is σ = 26293687674408. Its totient is φ = 4842934096000.

The previous prime is 12112121001083. The next prime is 12112121001121. The reversal of 12112121001100 is 110012121121.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23674441 + ... + 24180640.

It is an arithmetic number, because the mean of its divisors is an integer number (730380213178).

Almost surely, 2^{12112121001100} is an apocalyptic number.

12112121001100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12112121001100 is an abundant number, since it is smaller than the sum of its proper divisors (14181566673308).

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

12112121001100 is a wasteful number, since it uses less digits than its factorization.

12112121001100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47857626 (or 47857619 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 12112121001100 its reverse (110012121121), we get a palindrome (12222133122221).

The spelling of 12112121001100 in words is "twelve trillion, one hundred twelve billion, one hundred twenty-one million, one thousand, one hundred".