210221232223 has 4 divisors (see below), whose sum is σ = 210513612960. Its totient is φ = 209928851488.

The previous prime is 210221232209. The next prime is 210221232251. The reversal of 210221232223 is 322232122012.

210221232223 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 210221232223 - 2³³ = 201631297631 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 210221232194 and 210221232203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210221232283) 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, 146189290 + ... + 146190727.

It is an arithmetic number, because the mean of its divisors is an integer number (52628403240).

Almost surely, 2^210221232223 is an apocalyptic number.

210221232223 is a deficient number, since it is larger than the sum of its proper divisors (292380737).

210221232223 is an equidigital number, since it uses as much as digits as its factorization.

210221232223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292380736.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 210221232223 its reverse (322232122012), we get a palindrome (532453354235).

The spelling of 210221232223 in words is "two hundred ten billion, two hundred twenty-one million, two hundred thirty-two thousand, two hundred twenty-three".