2100211200011 has 4 divisors (see below), whose sum is σ = 2103173416800. Its totient is φ = 2097248983224.

The previous prime is 2100211199953. The next prime is 2100211200023. The reversal of 2100211200011 is 1100021120012.

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-2100211200011 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2100211199965 and 2100211200001.

It is not an unprimeable number, because it can be changed into a prime (2100211200611) 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, 1481107331 + ... + 1481108748.

It is an arithmetic number, because the mean of its divisors is an integer number (525793354200).

Almost surely, 2^{2100211200011} is an apocalyptic number.

2100211200011 is a deficient number, since it is larger than the sum of its proper divisors (2962216789).

2100211200011 is an equidigital number, since it uses as much as digits as its factorization.

2100211200011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2962216788.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 2100211200011 its reverse (1100021120012), we get a palindrome (3200232320023).

The spelling of 2100211200011 in words is "two trillion, one hundred billion, two hundred eleven million, two hundred thousand, eleven".