12112100212011 has 16 divisors (see below), whose sum is σ = 16347791518464. Its totient is φ = 7975615865184.

The previous prime is 12112100211947. The next prime is 12112100212039. The reversal of 12112100212011 is 11021200121121.

It is a happy number.

It is not a de Polignac number, because 12112100212011 - 2⁶ = 12112100211947 is a prime.

It is a super-2 number, since 2×12112100212011² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12112100212211) 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, 4497271 + ... + 6667056.

It is an arithmetic number, because the mean of its divisors is an integer number (1021736969904).

Almost surely, 2^{12112100212011} is an apocalyptic number.

12112100212011 is a deficient number, since it is larger than the sum of its proper divisors (4235691306453).

12112100212011 is a wasteful number, since it uses less digits than its factorization.

12112100212011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11168770.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 12112100212011 its reverse (11021200121121), we get a palindrome (23133300333132).

The spelling of 12112100212011 in words is "twelve trillion, one hundred twelve billion, one hundred million, two hundred twelve thousand, eleven".