12112211102001 has 4 divisors (see below), whose sum is σ = 16149614802672. Its totient is φ = 8074807401332.

The previous prime is 12112211101937. The next prime is 12112211102011. The reversal of 12112211102001 is 10020111221121.

It is a happy number.

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 12112211102001 - 2⁶ = 12112211101937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12112211102011) 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, 2018701850331 + ... + 2018701850336.

It is an arithmetic number, because the mean of its divisors is an integer number (4037403700668).

Almost surely, 2^{12112211102001} is an apocalyptic number.

It is an amenable number.

12112211102001 is a deficient number, since it is larger than the sum of its proper divisors (4037403700671).

12112211102001 is an equidigital number, since it uses as much as digits as its factorization.

12112211102001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4037403700670.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 12112211102001 its reverse (10020111221121), we get a palindrome (22132322323122).

The spelling of 12112211102001 in words is "twelve trillion, one hundred twelve billion, two hundred eleven million, one hundred two thousand, one".