12112111202101 has 4 divisors (see below), whose sum is σ = 12529770209100. Its totient is φ = 11694452195104.

The previous prime is 12112111202047. The next prime is 12112111202137. The reversal of 12112111202101 is 10120211121121.

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

It can be written as a sum of positive squares in 2 ways, for example, as 5265510408900 + 6846600793201 = 2294670^2 + 2616601^2 .

It is a cyclic number.

It is not a de Polignac number, because 12112111202101 - 2¹⁷ = 12112111071029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12112111202171) 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, 208829503456 + ... + 208829503513.

It is an arithmetic number, because the mean of its divisors is an integer number (3132442552275).

Almost surely, 2^{12112111202101} is an apocalyptic number.

It is an amenable number.

12112111202101 is a deficient number, since it is larger than the sum of its proper divisors (417659006999).

12112111202101 is an equidigital number, since it uses as much as digits as its factorization.

12112111202101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417659006998.

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

Adding to 12112111202101 its reverse (10120211121121), we get a palindrome (22232322323222).

The spelling of 12112111202101 in words is "twelve trillion, one hundred twelve billion, one hundred eleven million, two hundred two thousand, one hundred one".