11211100200111 has 32 divisors (see below), whose sum is σ = 18251115919360. Its totient is φ = 5978582428896.

The previous prime is 11211100200043. The next prime is 11211100200161. The reversal of 11211100200111 is 11100200111211.

It is not a de Polignac number, because 11211100200111 - 2¹⁴ = 11211100183727 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 (11211100200161) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 209659801 + ... + 209713266.

It is an arithmetic number, because the mean of its divisors is an integer number (570347372480).

Almost surely, 2^{11211100200111} is an apocalyptic number.

11211100200111 is a deficient number, since it is larger than the sum of its proper divisors (7040015719249).

11211100200111 is a wasteful number, since it uses less digits than its factorization.

11211100200111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419373163.

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 11211100200111 its reverse (11100200111211), we get a palindrome (22311300311322).

The spelling of 11211100200111 in words is "eleven trillion, two hundred eleven billion, one hundred million, two hundred thousand, one hundred eleven".