12112201001 has 4 divisors (see below), whose sum is σ = 12116028672. Its totient is φ = 12108373332.

The previous prime is 12112200983. The next prime is 12112201027. The reversal of 12112201001 is 10010221121.

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, and also an emirpimes, since its reverse is a distinct semiprime: 10010221121 = 467 ⋅21435163.

It is a cyclic number.

It is not a de Polignac number, because 12112201001 - 2⁶ = 12112200937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12112201061) 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, 1909085 + ... + 1915418.

It is an arithmetic number, because the mean of its divisors is an integer number (3029007168).

Almost surely, 2^12112201001 is an apocalyptic number.

It is an amenable number.

12112201001 is a deficient number, since it is larger than the sum of its proper divisors (3827671).

12112201001 is an equidigital number, since it uses as much as digits as its factorization.

12112201001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3827670.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 12112201001 its reverse (10010221121), we get a palindrome (22122422122).

The spelling of 12112201001 in words is "twelve billion, one hundred twelve million, two hundred one thousand, one".