211200021011099 has 4 divisors (see below), whose sum is σ = 211200061847064. Its totient is φ = 211199980175136.

The previous prime is 211200021011093. The next prime is 211200021011173. The reversal of 211200021011099 is 990110120002112.

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-211200021011099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211200021011093) 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, 11304062 + ... + 23455955.

It is an arithmetic number, because the mean of its divisors is an integer number (52800015461766).

Almost surely, 2^{211200021011099} is an apocalyptic number.

211200021011099 is a deficient number, since it is larger than the sum of its proper divisors (40835965).

211200021011099 is an equidigital number, since it uses as much as digits as its factorization.

211200021011099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40835964.

The product of its (nonzero) digits is 648, while the sum is 29.

The spelling of 211200021011099 in words is "two hundred eleven trillion, two hundred billion, twenty-one million, eleven thousand, ninety-nine".