211000202221 has 16 divisors (see below), whose sum is σ = 218401634880. Its totient is φ = 203713614720.

The previous prime is 211000202201. The next prime is 211000202267. The reversal of 211000202221 is 122202000112.

It is a happy number.

211000202221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 211000202221 - 2⁷ = 211000202093 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 (211000202201) 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 15 ways as a sum of consecutive naturals, for example, 16108951 + ... + 16122043.

It is an arithmetic number, because the mean of its divisors is an integer number (13650102180).

Almost surely, 2^211000202221 is an apocalyptic number.

It is an amenable number.

211000202221 is a deficient number, since it is larger than the sum of its proper divisors (7401432659).

211000202221 is a wasteful number, since it uses less digits than its factorization.

211000202221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17436.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 211000202221 its reverse (122202000112), we get a palindrome (333202202333).

The spelling of 211000202221 in words is "two hundred eleven billion, two hundred two thousand, two hundred twenty-one".