12112011222 has 16 divisors (see below), whose sum is σ = 24345753600. Its totient is φ = 4017048552.

The previous prime is 12112011181. The next prime is 12112011227. The reversal of 12112011222 is 22211021121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12112011227) 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, 5070838 + ... + 5073225.

It is an arithmetic number, because the mean of its divisors is an integer number (1521609600).

Almost surely, 2^12112011222 is an apocalyptic number.

12112011222 is an abundant number, since it is smaller than the sum of its proper divisors (12233742378).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12112011222 is a wasteful number, since it uses less digits than its factorization.

12112011222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10144267.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 12112011222 its reverse (22211021121), we get a palindrome (34323032343).

The spelling of 12112011222 in words is "twelve billion, one hundred twelve million, eleven thousand, two hundred twenty-two".