12111000122012 has 12 divisors (see below), whose sum is σ = 23121000233016. Its totient is φ = 5505000055440.

The previous prime is 12111000122003. The next prime is 12111000122099. The reversal of 12111000122012 is 21022100011121.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 137625001343 + ... + 137625001430.

It is an arithmetic number, because the mean of its divisors is an integer number (1926750019418).

Almost surely, 2^{12111000122012} is an apocalyptic number.

It is an amenable number.

12111000122012 is a deficient number, since it is larger than the sum of its proper divisors (11010000111004).

12111000122012 is a wasteful number, since it uses less digits than its factorization.

12111000122012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275250002788 (or 275250002786 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 12111000122012 its reverse (21022100011121), we get a palindrome (33133100133133).

The spelling of 12111000122012 in words is "twelve trillion, one hundred eleven billion, one hundred twenty-two thousand, twelve".