11100100220001 has 20 divisors (see below), whose sum is σ = 17857141286292. Its totient is φ = 6830830903968.

The previous prime is 11100100219919. The next prime is 11100100220119. The reversal of 11100100220001 is 10002200100111.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 4128520079376 + 6971580140625 = 2031876^2 + 2640375^2 .

It is a de Polignac number, because none of the positive numbers 2^k-11100100220001 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11100100220201) 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 19 ways as a sum of consecutive naturals, for example, 5270701806 + ... + 5270703911.

Almost surely, 2^{11100100220001} is an apocalyptic number.

It is an amenable number.

11100100220001 is a deficient number, since it is larger than the sum of its proper divisors (6757041066291).

11100100220001 is a wasteful number, since it uses less digits than its factorization.

11100100220001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10541405742 (or 10541405733 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 11100100220001 its reverse (10002200100111), we get a palindrome (21102300320112).

The spelling of 11100100220001 in words is "eleven trillion, one hundred billion, one hundred million, two hundred twenty thousand, one".