210320221211 has 4 divisors (see below), whose sum is σ = 216004551552. Its totient is φ = 204635890872.

The previous prime is 210320221207. The next prime is 210320221271. The reversal of 210320221211 is 112122023012.

210320221211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 210320221211 - 2² = 210320221207 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 210320221211.

It is not an unprimeable number, because it can be changed into a prime (210320221201) 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 3 ways as a sum of consecutive naturals, for example, 2842165115 + ... + 2842165188.

It is an arithmetic number, because the mean of its divisors is an integer number (54001137888).

Almost surely, 2^210320221211 is an apocalyptic number.

210320221211 is a deficient number, since it is larger than the sum of its proper divisors (5684330341).

210320221211 is an equidigital number, since it uses as much as digits as its factorization.

210320221211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5684330340.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 210320221211 its reverse (112122023012), we get a palindrome (322442244223).

The spelling of 210320221211 in words is "two hundred ten billion, three hundred twenty million, two hundred twenty-one thousand, two hundred eleven".