12112221022 has 8 divisors (see below), whose sum is σ = 19819998072. Its totient is φ = 5505555000.

The previous prime is 12112220993. The next prime is 12112221029. The reversal of 12112221022 is 22012221121.

It is a happy number.

12112221022 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 12112220987 and 12112221005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12112221029) 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, 275277729 + ... + 275277772.

It is an arithmetic number, because the mean of its divisors is an integer number (2477499759).

Almost surely, 2^12112221022 is an apocalyptic number.

12112221022 is a deficient number, since it is larger than the sum of its proper divisors (7707777050).

12112221022 is a wasteful number, since it uses less digits than its factorization.

12112221022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 550555514.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12112221022 its reverse (22012221121), we get a palindrome (34124442143).

Subtracting 12112221022 from its reverse (22012221121), we obtain a palindrome (9900000099).

The spelling of 12112221022 in words is "twelve billion, one hundred twelve million, two hundred twenty-one thousand, twenty-two".