12112221212236 has 12 divisors (see below), whose sum is σ = 21235137375928. Its totient is φ = 6045039104832.

The previous prime is 12112221212197. The next prime is 12112221212237. The reversal of 12112221212236 is 63221212221121.

It is a super-2 number, since 2×12112221212236² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12112221212237) 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, 2767872861 + ... + 2767877236.

Almost surely, 2^{12112221212236} is an apocalyptic number.

It is an amenable number.

12112221212236 is a deficient number, since it is larger than the sum of its proper divisors (9122916163692).

12112221212236 is a wasteful number, since it uses less digits than its factorization.

12112221212236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5535750648 (or 5535750646 counting only the distinct ones).

The product of its digits is 2304, while the sum is 28.

Adding to 12112221212236 its reverse (63221212221121), we get a palindrome (75333433433357).

The spelling of 12112221212236 in words is "twelve trillion, one hundred twelve billion, two hundred twenty-one million, two hundred twelve thousand, two hundred thirty-six".