12111012210111 has 16 divisors (see below), whose sum is σ = 17053279689600. Its totient is φ = 7624144826208.

The previous prime is 12111012210103. The next prime is 12111012210113. The reversal of 12111012210111 is 11101221011121.

12111012210111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12111012210111 - 2³ = 12111012210103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12111012210113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 346031196 + ... + 346066193.

It is an arithmetic number, because the mean of its divisors is an integer number (1065829980600).

Almost surely, 2^{12111012210111} is an apocalyptic number.

12111012210111 is a deficient number, since it is larger than the sum of its proper divisors (4942267479489).

12111012210111 is a wasteful number, since it uses less digits than its factorization.

12111012210111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 692097718.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 12111012210111 its reverse (11101221011121), we get a palindrome (23212233221232).

The spelling of 12111012210111 in words is "twelve trillion, one hundred eleven billion, twelve million, two hundred ten thousand, one hundred eleven".