210221112323 has 16 divisors (see below), whose sum is σ = 220602547200. Its totient is φ = 200142835200.

The previous prime is 210221112287. The next prime is 210221112341. The reversal of 210221112323 is 323211122012.

It is a cyclic number.

It is not a de Polignac number, because 210221112323 - 2¹⁰ = 210221111299 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 210221112295 and 210221112304.

It is not an unprimeable number, because it can be changed into a prime (210221112373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13298 + ... + 648551.

It is an arithmetic number, because the mean of its divisors is an integer number (13787659200).

Almost surely, 2^210221112323 is an apocalyptic number.

210221112323 is a deficient number, since it is larger than the sum of its proper divisors (10381434877).

210221112323 is a wasteful number, since it uses less digits than its factorization.

210221112323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 662078.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 210221112323 its reverse (323211122012), we get a palindrome (533432234335).

The spelling of 210221112323 in words is "two hundred ten billion, two hundred twenty-one million, one hundred twelve thousand, three hundred twenty-three".