12112022222 has 4 divisors (see below), whose sum is σ = 18168033336. Its totient is φ = 6056011110.

The previous prime is 12112022191. The next prime is 12112022233. The reversal of 12112022222 is 22222021121.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 12112022222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3028005554 + ... + 3028005557.

It is an arithmetic number, because the mean of its divisors is an integer number (4542008334).

Almost surely, 2^12112022222 is an apocalyptic number.

12112022222 is a deficient number, since it is larger than the sum of its proper divisors (6056011114).

12112022222 is an equidigital number, since it uses as much as digits as its factorization.

12112022222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6056011113.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 12112022222 its reverse (22222021121), we get a palindrome (34334043343).

The spelling of 12112022222 in words is "twelve billion, one hundred twelve million, twenty-two thousand, two hundred twenty-two".