12111100112212 has 36 divisors (see below), whose sum is σ = 21398518121344. Its totient is φ = 5997788879760.

The previous prime is 12111100112207. The next prime is 12111100112297. The reversal of 12111100112212 is 21221100111121.

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 11 ways as a sum of consecutive naturals, for example, 265181803 + ... + 265227469.

Almost surely, 2^{12111100112212} is an apocalyptic number.

It is an amenable number.

12111100112212 is a deficient number, since it is larger than the sum of its proper divisors (9287418009132).

12111100112212 is a wasteful number, since it uses less digits than its factorization.

12111100112212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51676 (or 51567 counting only the distinct ones).

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

Adding to 12111100112212 its reverse (21221100111121), we get a palindrome (33332200223333).

The spelling of 12111100112212 in words is "twelve trillion, one hundred eleven billion, one hundred million, one hundred twelve thousand, two hundred twelve".