12111111012110 has 32 divisors (see below), whose sum is σ = 25180748461152. Its totient is φ = 4144979169280.

The previous prime is 12111111012061. The next prime is 12111111012113. The reversal of 12111111012110 is 1121011111121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12111111012113) 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 in 15 ways as a sum of consecutive naturals, for example, 3238263107 + ... + 3238266846.

It is an arithmetic number, because the mean of its divisors is an integer number (786898389411).

Almost surely, 2^{12111111012110} is an apocalyptic number.

12111111012110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12111111012110 is an abundant number, since it is smaller than the sum of its proper divisors (13069637449042).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12111111012110 is a wasteful number, since it uses less digits than its factorization.

12111111012110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6476529988.

The product of its (nonzero) digits is 4, while the sum is 14.

Adding to 12111111012110 its reverse (1121011111121), we get a palindrome (13232122123231).

The spelling of 12111111012110 in words is "twelve trillion, one hundred eleven billion, one hundred eleven million, twelve thousand, one hundred ten".