11201100212111 has 4 divisors (see below), whose sum is σ = 11219372806872. Its totient is φ = 11182827617352.

The previous prime is 11201100212089. The next prime is 11201100212153. The reversal of 11201100212111 is 11121200110211.

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 11201100212111 - 2²² = 11201096017807 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 (11201100212011) 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, 9136296461 + ... + 9136297686.

It is an arithmetic number, because the mean of its divisors is an integer number (2804843201718).

Almost surely, 2^{11201100212111} is an apocalyptic number.

11201100212111 is a deficient number, since it is larger than the sum of its proper divisors (18272594761).

11201100212111 is an equidigital number, since it uses as much as digits as its factorization.

11201100212111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18272594760.

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

Adding to 11201100212111 its reverse (11121200110211), we get a palindrome (22322300322322).

The spelling of 11201100212111 in words is "eleven trillion, two hundred one billion, one hundred million, two hundred twelve thousand, one hundred eleven".