11102212111 has 4 divisors (see below), whose sum is σ = 11189631232. Its totient is φ = 11014792992.

The previous prime is 11102212061. The next prime is 11102212181. The reversal of 11102212111 is 11121220111.

It is a happy number.

11102212111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 11102212111 - 2⁷ = 11102211983 is a prime.

It is a super-2 number, since 2×11102212111² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11102212091 and 11102212100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11102212181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43709370 + ... + 43709623.

It is an arithmetic number, because the mean of its divisors is an integer number (2797407808).

Almost surely, 2^11102212111 is an apocalyptic number.

11102212111 is a deficient number, since it is larger than the sum of its proper divisors (87419121).

11102212111 is an equidigital number, since it uses as much as digits as its factorization.

11102212111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87419120.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 11102212111 its reverse (11121220111), we get a palindrome (22223432222).

The spelling of 11102212111 in words is "eleven billion, one hundred two million, two hundred twelve thousand, one hundred eleven".