12112211210012 has 24 divisors (see below), whose sum is σ = 21216307161504. Its totient is φ = 6050409659712.

The previous prime is 12112211209991. The next prime is 12112211210023. The reversal of 12112211210012 is 21001211221121.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128796713 + ... + 128890719.

It is an arithmetic number, because the mean of its divisors is an integer number (884012798396).

Almost surely, 2^{12112211210012} is an apocalyptic number.

It is an amenable number.

12112211210012 is a deficient number, since it is larger than the sum of its proper divisors (9104095951492).

12112211210012 is a wasteful number, since it uses less digits than its factorization.

12112211210012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123965 (or 123963 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 12112211210012 its reverse (21001211221121), we get a palindrome (33113422431133).

The spelling of 12112211210012 in words is "twelve trillion, one hundred twelve billion, two hundred eleven million, two hundred ten thousand, twelve".