211330323221 has 8 divisors (see below), whose sum is σ = 212001914688. Its totient is φ = 210658932000.

The previous prime is 211330323181. The next prime is 211330323223. The reversal of 211330323221 is 122323033112.

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 211330323221 - 2¹⁰ = 211330322197 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 (211330323223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2227841 + ... + 2320761.

It is an arithmetic number, because the mean of its divisors is an integer number (26500239336).

Almost surely, 2^211330323221 is an apocalyptic number.

It is an amenable number.

211330323221 is a deficient number, since it is larger than the sum of its proper divisors (671591467).

211330323221 is an equidigital number, since it uses as much as digits as its factorization.

211330323221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100123.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 211330323221 its reverse (122323033112), we get a palindrome (333653356333).

The spelling of 211330323221 in words is "two hundred eleven billion, three hundred thirty million, three hundred twenty-three thousand, two hundred twenty-one".