11001102220221 has 32 divisors (see below), whose sum is σ = 15951271160448. Its totient is φ = 6715863705600.

The previous prime is 11001102220219. The next prime is 11001102220249. The reversal of 11001102220221 is 12202220110011.

It is not a de Polignac number, because 11001102220221 - 2¹ = 11001102220219 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11001102220221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11001102220201) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 66719346 + ... + 66884028.

It is an arithmetic number, because the mean of its divisors is an integer number (498477223764).

Almost surely, 2^{11001102220221} is an apocalyptic number.

It is an amenable number.

11001102220221 is a deficient number, since it is larger than the sum of its proper divisors (4950168940227).

11001102220221 is a wasteful number, since it uses less digits than its factorization.

11001102220221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200141.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 11001102220221 its reverse (12202220110011), we get a palindrome (23203322330232).

The spelling of 11001102220221 in words is "eleven trillion, one billion, one hundred two million, two hundred twenty thousand, two hundred twenty-one".