11011100221 has 8 divisors (see below), whose sum is σ = 12012904800. Its totient is φ = 10009428240.

The previous prime is 11011100207. The next prime is 11011100227. The reversal of 11011100221 is 12200111011.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11011100221 - 2¹⁵ = 11011067453 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11011100198 and 11011100207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11011100227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 234450 + ... + 277468.

It is an arithmetic number, because the mean of its divisors is an integer number (1501613100).

Almost surely, 2^11011100221 is an apocalyptic number.

11011100221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11011100221 is a deficient number, since it is larger than the sum of its proper divisors (1001804579).

11011100221 is a wasteful number, since it uses less digits than its factorization.

11011100221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66299.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 11011100221 its reverse (12200111011), we get a palindrome (23211211232).

The spelling of 11011100221 in words is "eleven billion, eleven million, one hundred thousand, two hundred twenty-one".