221320200211 has 16 divisors (see below), whose sum is σ = 244277146368. Its totient is φ = 198843372000.

The previous prime is 221320200209. The next prime is 221320200289. The reversal of 221320200211 is 112002023122.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 221320200211 - 2¹ = 221320200209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221320200011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 425626 + ... + 789808.

It is an arithmetic number, because the mean of its divisors is an integer number (15267321648).

Almost surely, 2^221320200211 is an apocalyptic number.

221320200211 is a deficient number, since it is larger than the sum of its proper divisors (22956946157).

221320200211 is a wasteful number, since it uses less digits than its factorization.

221320200211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364842.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 221320200211 its reverse (112002023122), we get a palindrome (333322223333).

The spelling of 221320200211 in words is "two hundred twenty-one billion, three hundred twenty million, two hundred thousand, two hundred eleven".