11101022111 has 4 divisors (see below), whose sum is σ = 11114413800. Its totient is φ = 11087630424.

The previous prime is 11101022089. The next prime is 11101022113. The reversal of 11101022111 is 11122010111.

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 11101022111 - 2⁶ = 11101022047 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11101022092 and 11101022101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11101022113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6694601 + ... + 6696258.

It is an arithmetic number, because the mean of its divisors is an integer number (2778603450).

Almost surely, 2^11101022111 is an apocalyptic number.

11101022111 is a deficient number, since it is larger than the sum of its proper divisors (13391689).

11101022111 is an equidigital number, since it uses as much as digits as its factorization.

11101022111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13391688.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 11101022111 its reverse (11122010111), we get a palindrome (22223032222).

The spelling of 11101022111 in words is "eleven billion, one hundred one million, twenty-two thousand, one hundred eleven".