12012112202011 has 4 divisors (see below), whose sum is σ = 12027980250592. Its totient is φ = 11996244153432.

The previous prime is 12012112201937. The next prime is 12012112202029. The reversal of 12012112202011 is 11020221121021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12012112202011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12012112202411) 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 3 ways as a sum of consecutive naturals, for example, 7934023155 + ... + 7934024668.

It is an arithmetic number, because the mean of its divisors is an integer number (3006995062648).

Almost surely, 2^{12012112202011} is an apocalyptic number.

12012112202011 is a deficient number, since it is larger than the sum of its proper divisors (15868048581).

12012112202011 is an equidigital number, since it uses as much as digits as its factorization.

12012112202011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15868048580.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 12012112202011 its reverse (11020221121021), we get a palindrome (23032333323032).

The spelling of 12012112202011 in words is "twelve trillion, twelve billion, one hundred twelve million, two hundred two thousand, eleven".