12112220201 has 4 divisors (see below), whose sum is σ = 12124107600. Its totient is φ = 12100332804.

The previous prime is 12112220191. The next prime is 12112220249. The reversal of 12112220201 is 10202221121.

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: 10202221121 = 37529 ⋅271849.

It is a cyclic number.

It is not a de Polignac number, because 12112220201 - 2³⁰ = 11038478377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12112220261) 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, 5942171 + ... + 5944208.

It is an arithmetic number, because the mean of its divisors is an integer number (3031026900).

Almost surely, 2^12112220201 is an apocalyptic number.

It is an amenable number.

12112220201 is a deficient number, since it is larger than the sum of its proper divisors (11887399).

12112220201 is a wasteful number, since it uses less digits than its factorization.

12112220201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11887398.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 12112220201 its reverse (10202221121), we get a palindrome (22314441322).

The spelling of 12112220201 in words is "twelve billion, one hundred twelve million, two hundred twenty thousand, two hundred one".