12112122012101 has 4 divisors (see below), whose sum is σ = 12112285898400. Its totient is φ = 12111958125804.

The previous prime is 12112122012097. The next prime is 12112122012139. The reversal of 12112122012101 is 10121022121121.

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 12112122012101 - 2² = 12112122012097 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 12112122012101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12112122012301) 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, 81832241 + ... + 81980118.

It is an arithmetic number, because the mean of its divisors is an integer number (3028071474600).

Almost surely, 2^{12112122012101} is an apocalyptic number.

It is an amenable number.

12112122012101 is a deficient number, since it is larger than the sum of its proper divisors (163886299).

12112122012101 is an equidigital number, since it uses as much as digits as its factorization.

12112122012101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163886298.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 12112122012101 its reverse (10121022121121), we get a palindrome (22233144133222).

The spelling of 12112122012101 in words is "twelve trillion, one hundred twelve billion, one hundred twenty-two million, twelve thousand, one hundred one".