12112100001121 has 16 divisors (see below), whose sum is σ = 12908251736064. Its totient is φ = 11338433884624.

The previous prime is 12112100000969. The next prime is 12112100001143. The reversal of 12112100001121 is 12110000121121.

It is a happy number.

It is not a de Polignac number, because 12112100001121 - 2¹⁷ = 12112099870049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12112100001181) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22787430 + ... + 23312896.

It is an arithmetic number, because the mean of its divisors is an integer number (806765733504).

Almost surely, 2^{12112100001121} is an apocalyptic number.

It is an amenable number.

12112100001121 is a deficient number, since it is larger than the sum of its proper divisors (796151734943).

12112100001121 is a wasteful number, since it uses less digits than its factorization.

12112100001121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 546860.

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

Adding to 12112100001121 its reverse (12110000121121), we get a palindrome (24222100122242).

The spelling of 12112100001121 in words is "twelve trillion, one hundred twelve billion, one hundred million, one thousand, one hundred twenty-one".