221201110020211 has 8 divisors (see below), whose sum is σ = 221350294124960. Its totient is φ = 221051947793472.

The previous prime is 221201110020181. The next prime is 221201110020217. The reversal of 221201110020211 is 112020011102122.

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

It is a cyclic number.

It is not a de Polignac number, because 221201110020211 - 2¹⁷ = 221201109889139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221201110020217) 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 7 ways as a sum of consecutive naturals, for example, 14783911 + ... + 25709263.

It is an arithmetic number, because the mean of its divisors is an integer number (27668786765620).

Almost surely, 2^{221201110020211} is an apocalyptic number.

221201110020211 is a deficient number, since it is larger than the sum of its proper divisors (149184104749).

221201110020211 is a wasteful number, since it uses less digits than its factorization.

221201110020211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10939005.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 221201110020211 its reverse (112020011102122), we get a palindrome (333221121122333).

The spelling of 221201110020211 in words is "two hundred twenty-one trillion, two hundred one billion, one hundred ten million, twenty thousand, two hundred eleven".