11100205211 has 4 divisors (see below), whose sum is σ = 11140278432. Its totient is φ = 11060131992.

The previous prime is 11100205187. The next prime is 11100205217. The reversal of 11100205211 is 11250200111.

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

It is a cyclic number.

It is not a de Polignac number, because 11100205211 - 2¹⁸ = 11099943067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11100205217) 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 3 ways as a sum of consecutive naturals, for example, 20036195 + ... + 20036748.

It is an arithmetic number, because the mean of its divisors is an integer number (2785069608).

Almost surely, 2^11100205211 is an apocalyptic number.

11100205211 is a deficient number, since it is larger than the sum of its proper divisors (40073221).

11100205211 is an equidigital number, since it uses as much as digits as its factorization.

11100205211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40073220.

The product of its (nonzero) digits is 20, while the sum is 14.

Adding to 11100205211 its reverse (11250200111), we get a palindrome (22350405322).

The spelling of 11100205211 in words is "eleven billion, one hundred million, two hundred five thousand, two hundred eleven".