11102209111 has 4 divisors (see below), whose sum is σ = 12688238992. Its totient is φ = 9516179232.

The previous prime is 11102209073. The next prime is 11102209141. The reversal of 11102209111 is 11190220111.

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

It is not a de Polignac number, because 11102209111 - 2¹¹ = 11102207063 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 (11102209141) 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, 793014930 + ... + 793014943.

It is an arithmetic number, because the mean of its divisors is an integer number (3172059748).

Almost surely, 2^11102209111 is an apocalyptic number.

11102209111 is a deficient number, since it is larger than the sum of its proper divisors (1586029881).

11102209111 is an equidigital number, since it uses as much as digits as its factorization.

11102209111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1586029880.

The product of its (nonzero) digits is 36, while the sum is 19.

Adding to 11102209111 its reverse (11190220111), we get a palindrome (22292429222).

The spelling of 11102209111 in words is "eleven billion, one hundred two million, two hundred nine thousand, one hundred eleven".