2100000012011 has 4 divisors (see below), whose sum is σ = 2290909104024. Its totient is φ = 1909090920000.

The previous prime is 2100000011971. The next prime is 2100000012023. The reversal of 2100000012011 is 1102100000012.

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

It is not a de Polignac number, because 2100000012011 - 2³⁸ = 1825122105067 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2100000012011.

It is not an unprimeable number, because it can be changed into a prime (2100000015011) 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, 95454545990 + ... + 95454546011.

It is an arithmetic number, because the mean of its divisors is an integer number (572727276006).

Almost surely, 2^{2100000012011} is an apocalyptic number.

2100000012011 is a deficient number, since it is larger than the sum of its proper divisors (190909092013).

2100000012011 is a wasteful number, since it uses less digits than its factorization.

2100000012011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190909092012.

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 2100000012011 its reverse (1102100000012), we get a palindrome (3202100012023).

The spelling of 2100000012011 in words is "two trillion, one hundred billion, twelve thousand, eleven".