11100021000111 has 16 divisors (see below), whose sum is σ = 16454399868000. Its totient is φ = 7395548059584.

The previous prime is 11100021000097. The next prime is 11100021000113. The reversal of 11100021000111 is 11100012000111.

It is not a de Polignac number, because 11100021000111 - 2¹⁷ = 11100020869039 is a prime.

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

It is a junction number, because it is equal to n+sod(n) for n = 11100021000093 and 11100021000102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11100021000113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 124008336 + ... + 124097813.

It is an arithmetic number, because the mean of its divisors is an integer number (1028399991750).

Almost surely, 2^{11100021000111} is an apocalyptic number.

11100021000111 is a deficient number, since it is larger than the sum of its proper divisors (5354378867889).

11100021000111 is a wasteful number, since it uses less digits than its factorization.

11100021000111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248107815 (or 248107809 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 9.

Adding to 11100021000111 its reverse (11100012000111), we get a palindrome (22200033000222).

Subtracting from 11100021000111 its reverse (11100012000111), we obtain a square (9000000 = 3000²).

The spelling of 11100021000111 in words is "eleven trillion, one hundred billion, twenty-one million, one hundred eleven", and thus it is an aban number.