212100201101111 has 4 divisors (see below), whose sum is σ = 212888677685400. Its totient is φ = 211311724516824.

The previous prime is 212100201101099. The next prime is 212100201101153. The reversal of 212100201101111 is 111101102001212.

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 212100201101111 - 2²⁶ = 212100133992247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212100201101161) 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, 394238291741 + ... + 394238292278.

It is an arithmetic number, because the mean of its divisors is an integer number (53222169421350).

Almost surely, 2^{212100201101111} is an apocalyptic number.

212100201101111 is a deficient number, since it is larger than the sum of its proper divisors (788476584289).

212100201101111 is an equidigital number, since it uses as much as digits as its factorization.

212100201101111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 788476584288.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 212100201101111 its reverse (111101102001212), we get a palindrome (323201303102323).

The spelling of 212100201101111 in words is "two hundred twelve trillion, one hundred billion, two hundred one million, one hundred one thousand, one hundred eleven".