2012110011211 has 4 divisors (see below), whose sum is σ = 2012112849672. Its totient is φ = 2012107172752.

The previous prime is 2012110011203. The next prime is 2012110011251. The reversal of 2012110011211 is 1121100112102.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2012110011211 - 2³ = 2012110011203 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2012110011191 and 2012110011200.

It is not an unprimeable number, because it can be changed into a prime (2012110011251) 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, 640815 + ... + 2105911.

It is an arithmetic number, because the mean of its divisors is an integer number (503028212418).

Almost surely, 2^{2012110011211} is an apocalyptic number.

2012110011211 is a deficient number, since it is larger than the sum of its proper divisors (2838461).

2012110011211 is a wasteful number, since it uses less digits than its factorization.

2012110011211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2838460.

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

Adding to 2012110011211 its reverse (1121100112102), we get a palindrome (3133210123313).

The spelling of 2012110011211 in words is "two trillion, twelve billion, one hundred ten million, eleven thousand, two hundred eleven".