11021100000221 has 16 divisors (see below), whose sum is σ = 11695568040576. Its totient is φ = 10349547572736.

The previous prime is 11021100000143. The next prime is 11021100000227. The reversal of 11021100000221 is 12200000112011.

It is a cyclic number.

It is not a de Polignac number, because 11021100000221 - 2¹⁰ = 11021099999197 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 (11021100000227) 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 15 ways as a sum of consecutive naturals, for example, 44724470 + ... + 44970216.

It is an arithmetic number, because the mean of its divisors is an integer number (730973002536).

Almost surely, 2^{11021100000221} is an apocalyptic number.

It is an amenable number.

11021100000221 is a deficient number, since it is larger than the sum of its proper divisors (674468040355).

11021100000221 is a wasteful number, since it uses less digits than its factorization.

11021100000221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251668.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 11021100000221 its reverse (12200000112011), we get a palindrome (23221100112232).

The spelling of 11021100000221 in words is "eleven trillion, twenty-one billion, one hundred million, two hundred twenty-one", and thus it is an aban number.