12112211333 has 4 divisors (see below), whose sum is σ = 12749696160. Its totient is φ = 11474726508.

The previous prime is 12112211273. The next prime is 12112211347. The reversal of 12112211333 is 33311221121.

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, and also an emirpimes, since its reverse is a distinct semiprime: 33311221121 = 197 ⋅169092493.

It is a cyclic number.

It is not a de Polignac number, because 12112211333 - 2⁸ = 12112211077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12112211383) 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, 318742385 + ... + 318742422.

It is an arithmetic number, because the mean of its divisors is an integer number (3187424040).

Almost surely, 2^12112211333 is an apocalyptic number.

It is an amenable number.

12112211333 is a deficient number, since it is larger than the sum of its proper divisors (637484827).

12112211333 is an equidigital number, since it uses as much as digits as its factorization.

12112211333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 637484826.

The product of its digits is 216, while the sum is 20.

Adding to 12112211333 its reverse (33311221121), we get a palindrome (45423432454).

The spelling of 12112211333 in words is "twelve billion, one hundred twelve million, two hundred eleven thousand, three hundred thirty-three".