221011000099 has 4 divisors (see below), whose sum is σ = 221302957264. Its totient is φ = 220719042936.

The previous prime is 221011000073. The next prime is 221011000121. The reversal of 221011000099 is 990000110122.

221011000099 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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-221011000099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221011003099) 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, 145977447 + ... + 145978960.

It is an arithmetic number, because the mean of its divisors is an integer number (55325739316).

Almost surely, 2^221011000099 is an apocalyptic number.

221011000099 is a deficient number, since it is larger than the sum of its proper divisors (291957165).

221011000099 is an equidigital number, since it uses as much as digits as its factorization.

221011000099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291957164.

The product of its (nonzero) digits is 324, while the sum is 25.

The spelling of 221011000099 in words is "two hundred twenty-one billion, eleven million, ninety-nine", and thus it is an aban number.