12111222333 has 8 divisors (see below), whose sum is σ = 18455195968. Its totient is φ = 6920698464.

The previous prime is 12111222323. The next prime is 12111222359. The reversal of 12111222333 is 33322211121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12111222333 - 2⁵ = 12111222301 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 576724873 = 12111222333 / (1 + 2 + 1 + 1 + 1 + 2 + 2 + 2 + 3 + 3 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12111222323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 288362416 + ... + 288362457.

It is an arithmetic number, because the mean of its divisors is an integer number (2306899496).

Almost surely, 2^12111222333 is an apocalyptic number.

It is an amenable number.

12111222333 is a deficient number, since it is larger than the sum of its proper divisors (6343973635).

12111222333 is an equidigital number, since it uses as much as digits as its factorization.

12111222333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 576724883.

The product of its digits is 432, while the sum is 21.

Adding to 12111222333 its reverse (33322211121), we get a palindrome (45433433454).

The spelling of 12111222333 in words is "twelve billion, one hundred eleven million, two hundred twenty-two thousand, three hundred thirty-three".