11021100102191 has 4 divisors (see below), whose sum is σ = 11229045387192. Its totient is φ = 10813154817192.

The previous prime is 11021100102157. The next prime is 11021100102241. The reversal of 11021100102191 is 19120100112011.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11021100102191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11021100108191) 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, 103972642421 + ... + 103972642526.

It is an arithmetic number, because the mean of its divisors is an integer number (2807261346798).

Almost surely, 2^{11021100102191} is an apocalyptic number.

11021100102191 is a deficient number, since it is larger than the sum of its proper divisors (207945285001).

11021100102191 is an equidigital number, since it uses as much as digits as its factorization.

11021100102191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207945285000.

The product of its (nonzero) digits is 36, while the sum is 20.

The spelling of 11021100102191 in words is "eleven trillion, twenty-one billion, one hundred million, one hundred two thousand, one hundred ninety-one".