11102011100021 has 4 divisors (see below), whose sum is σ = 11103131732832. Its totient is φ = 11100890467212.

The previous prime is 11102011099943. The next prime is 11102011100027. The reversal of 11102011100021 is 12000111020111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11102011100021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11102011099975 and 11102011100011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11102011100027) 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 3 ways as a sum of consecutive naturals, for example, 560301545 + ... + 560321358.

It is an arithmetic number, because the mean of its divisors is an integer number (2775782933208).

Almost surely, 2^{11102011100021} is an apocalyptic number.

It is an amenable number.

11102011100021 is a deficient number, since it is larger than the sum of its proper divisors (1120632811).

11102011100021 is an equidigital number, since it uses as much as digits as its factorization.

11102011100021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1120632810.

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

Adding to 11102011100021 its reverse (12000111020111), we get a palindrome (23102122120132).

The spelling of 11102011100021 in words is "eleven trillion, one hundred two billion, eleven million, one hundred thousand, twenty-one".