12111012200011 has 4 divisors (see below), whose sum is σ = 12171871558000. Its totient is φ = 12050152842024.

The previous prime is 12111012199919. The next prime is 12111012200017. The reversal of 12111012200011 is 11000221011121.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 12111012200011 - 2⁹ = 12111012199499 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12111012199964 and 12111012200000.

It is not an unprimeable number, because it can be changed into a prime (12111012200017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30429678696 + ... + 30429679093.

It is an arithmetic number, because the mean of its divisors is an integer number (3042967889500).

Almost surely, 2^{12111012200011} is an apocalyptic number.

12111012200011 is a deficient number, since it is larger than the sum of its proper divisors (60859357989).

12111012200011 is an equidigital number, since it uses as much as digits as its factorization.

12111012200011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60859357988.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 12111012200011 its reverse (11000221011121), we get a palindrome (23111233211132).

The spelling of 12111012200011 in words is "twelve trillion, one hundred eleven billion, twelve million, two hundred thousand, eleven".