12112011110021 has 8 divisors (see below), whose sum is σ = 12371904238080. Its totient is φ = 11852209263888.

The previous prime is 12112011109999. The next prime is 12112011110027. The reversal of 12112011110021 is 12001111021121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12112011110021 - 2¹⁰ = 12112011108997 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12112011109978 and 12112011110005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12112011110027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22552226 + ... + 23083043.

It is an arithmetic number, because the mean of its divisors is an integer number (1546488029760).

Almost surely, 2^{12112011110021} is an apocalyptic number.

It is an amenable number.

12112011110021 is a deficient number, since it is larger than the sum of its proper divisors (259893128059).

12112011110021 is an equidigital number, since it uses as much as digits as its factorization.

12112011110021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45640963.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 12112011110021 its reverse (12001111021121), we get a palindrome (24113122131142).

The spelling of 12112011110021 in words is "twelve trillion, one hundred twelve billion, eleven million, one hundred ten thousand, twenty-one".