11102122211 has 4 divisors (see below), whose sum is σ = 11104321800. Its totient is φ = 11099922624.

The previous prime is 11102122189. The next prime is 11102122231. The reversal of 11102122211 is 11222120111.

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 11102122211 - 2³⁰ = 10028380387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11102122231) 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, 1092206 + ... + 1102323.

It is an arithmetic number, because the mean of its divisors is an integer number (2776080450).

Almost surely, 2^11102122211 is an apocalyptic number.

11102122211 is a deficient number, since it is larger than the sum of its proper divisors (2199589).

11102122211 is an equidigital number, since it uses as much as digits as its factorization.

11102122211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2199588.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 11102122211 its reverse (11222120111), we get a palindrome (22324242322).

The spelling of 11102122211 in words is "eleven billion, one hundred two million, one hundred twenty-two thousand, two hundred eleven".