211000201221 has 8 divisors (see below), whose sum is σ = 281466754240. Its totient is φ = 140600224512.

The previous prime is 211000201219. The next prime is 211000201259. The reversal of 211000201221 is 122102000112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 211000201221 - 2¹ = 211000201219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211000201197 and 211000201206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211000201271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16636681 + ... + 16649358.

It is an arithmetic number, because the mean of its divisors is an integer number (35183344280).

Almost surely, 2^211000201221 is an apocalyptic number.

It is an amenable number.

211000201221 is a deficient number, since it is larger than the sum of its proper divisors (70466553019).

211000201221 is a wasteful number, since it uses less digits than its factorization.

211000201221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33288155.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 211000201221 its reverse (122102000112), we get a palindrome (333102201333).

The spelling of 211000201221 in words is "two hundred eleven billion, two hundred one thousand, two hundred twenty-one".