12112010011111 has 4 divisors (see below), whose sum is σ = 12159138454992. Its totient is φ = 12064881567232.

The previous prime is 12112010011069. The next prime is 12112010011201. The reversal of 12112010011111 is 11111001021121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12112010011111 - 2⁷ = 12112010010983 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12112010011091 and 12112010011100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12112010011511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23564221555 + ... + 23564222068.

It is an arithmetic number, because the mean of its divisors is an integer number (3039784613748).

Almost surely, 2^{12112010011111} is an apocalyptic number.

12112010011111 is a deficient number, since it is larger than the sum of its proper divisors (47128443881).

12112010011111 is an equidigital number, since it uses as much as digits as its factorization.

12112010011111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47128443880.

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 12112010011111 its reverse (11111001021121), we get a palindrome (23223011032232).

The spelling of 12112010011111 in words is "twelve trillion, one hundred twelve billion, ten million, eleven thousand, one hundred eleven".