11201120012111 has 4 divisors (see below), whose sum is σ = 11587365529800. Its totient is φ = 10814874494424.

The previous prime is 11201120012099. The next prime is 11201120012119. The reversal of 11201120012111 is 11121002110211.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11201120012111 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 (11201120012119) 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, 193122758801 + ... + 193122758858.

It is an arithmetic number, because the mean of its divisors is an integer number (2896841382450).

Almost surely, 2^{11201120012111} is an apocalyptic number.

11201120012111 is a deficient number, since it is larger than the sum of its proper divisors (386245517689).

11201120012111 is an equidigital number, since it uses as much as digits as its factorization.

11201120012111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386245517688.

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

Adding to 11201120012111 its reverse (11121002110211), we get a palindrome (22322122122322).

The spelling of 11201120012111 in words is "eleven trillion, two hundred one billion, one hundred twenty million, twelve thousand, one hundred eleven".