11100110012021 has 4 divisors (see below), whose sum is σ = 11100117121932. Its totient is φ = 11100102902112.

The previous prime is 11100110011997. The next prime is 11100110012081. The reversal of 11100110012021 is 12021001100111.

11100110012021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 1451097298225 + 9649012713796 = 1204615^2 + 3106286^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11100110012021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11100110011993 and 11100110012011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11100110012081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82520 + ... + 4712433.

It is an arithmetic number, because the mean of its divisors is an integer number (2775029280483).

Almost surely, 2^{11100110012021} is an apocalyptic number.

It is an amenable number.

11100110012021 is a deficient number, since it is larger than the sum of its proper divisors (7109911).

11100110012021 is an equidigital number, since it uses as much as digits as its factorization.

11100110012021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7109910.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 11100110012021 its reverse (12021001100111), we get a palindrome (23121111112132).

The spelling of 11100110012021 in words is "eleven trillion, one hundred billion, one hundred ten million, twelve thousand, twenty-one".