12112110001 has 4 divisors (see below), whose sum is σ = 12179775600. Its totient is φ = 12044444404.

The previous prime is 12112109957. The next prime is 12112110013. The reversal of 12112110001 is 10001121121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12112110001 - 2¹⁵ = 12112077233 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12112110001.

It is not an unprimeable number, because it can be changed into a prime (12112110061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33832531 + ... + 33832888.

It is an arithmetic number, because the mean of its divisors is an integer number (3044943900).

Almost surely, 2^12112110001 is an apocalyptic number.

It is an amenable number.

12112110001 is a deficient number, since it is larger than the sum of its proper divisors (67665599).

12112110001 is an equidigital number, since it uses as much as digits as its factorization.

12112110001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67665598.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 12112110001 its reverse (10001121121), we get a palindrome (22113231122).

It can be divided in two parts, 121121 and 10001, that multiplied together give a palindrome (1211331121).

The spelling of 12112110001 in words is "twelve billion, one hundred twelve million, one hundred ten thousand, one".