2100212312011 has 4 divisors (see below), whose sum is σ = 2291140704024. Its totient is φ = 1909283920000.

The previous prime is 2100212311931. The next prime is 2100212312039. The reversal of 2100212312011 is 1102132120012.

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 2100212312011 - 2¹¹ = 2100212309963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2100212312111) 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, 95464195990 + ... + 95464196011.

It is an arithmetic number, because the mean of its divisors is an integer number (572785176006).

Almost surely, 2^{2100212312011} is an apocalyptic number.

2100212312011 is a deficient number, since it is larger than the sum of its proper divisors (190928392013).

2100212312011 is a wasteful number, since it uses less digits than its factorization.

2100212312011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190928392012.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 2100212312011 its reverse (1102132120012), we get a palindrome (3202344432023).

The spelling of 2100212312011 in words is "two trillion, one hundred billion, two hundred twelve million, three hundred twelve thousand, eleven".