12112110021101 has 4 divisors (see below), whose sum is σ = 12112167011100. Its totient is φ = 12112053031104.

The previous prime is 12112110021031. The next prime is 12112110021127. The reversal of 12112110021101 is 10112001121121.

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 9238742620900 + 2873367400201 = 3039530^2 + 1695101^2 .

It is a cyclic number.

It is not a de Polignac number, because 12112110021101 - 2²⁶ = 12112042912237 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 (12112110021131) 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, 28175006 + ... + 28601663.

It is an arithmetic number, because the mean of its divisors is an integer number (3028041752775).

Almost surely, 2^{12112110021101} is an apocalyptic number.

It is an amenable number.

12112110021101 is a deficient number, since it is larger than the sum of its proper divisors (56989999).

12112110021101 is an equidigital number, since it uses as much as digits as its factorization.

12112110021101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56989998.

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

Adding to 12112110021101 its reverse (10112001121121), we get a palindrome (22224111142222).

The spelling of 12112110021101 in words is "twelve trillion, one hundred twelve billion, one hundred ten million, twenty-one thousand, one hundred one".