12112222222237 has 2 divisors, whose sum is σ = 12112222222238. Its totient is φ = 12112222222236.

The previous prime is 12112222222211. The next prime is 12112222222349. The reversal of 12112222222237 is 73222222221121.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12017689955716 + 94532266521 = 3466654^2 + 307461^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12112222222237 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12112222222199 and 12112222222208.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12112222252237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6056111111118 + 6056111111119.

It is an arithmetic number, because the mean of its divisors is an integer number (6056111111119).

Almost surely, 2^{12112222222237} is an apocalyptic number.

It is an amenable number.

12112222222237 is a deficient number, since it is larger than the sum of its proper divisors (1).

12112222222237 is an equidigital number, since it uses as much as digits as its factorization.

12112222222237 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10752, while the sum is 31.

Adding to 12112222222237 its reverse (73222222221121), we get a palindrome (85334444443358).

The spelling of 12112222222237 in words is "twelve trillion, one hundred twelve billion, two hundred twenty-two million, two hundred twenty-two thousand, two hundred thirty-seven".