210012303221 has 16 divisors (see below), whose sum is σ = 240423070080. Its totient is φ = 179703982080.

The previous prime is 210012303187. The next prime is 210012303233. The reversal of 210012303221 is 122303210012.

It is not a de Polignac number, because 210012303221 - 2¹⁸ = 210012041077 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 210012303221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210012303251) 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 15 ways as a sum of consecutive naturals, for example, 17354645 + ... + 17366741.

It is an arithmetic number, because the mean of its divisors is an integer number (15026441880).

Almost surely, 2^210012303221 is an apocalyptic number.

It is an amenable number.

210012303221 is a deficient number, since it is larger than the sum of its proper divisors (30410766859).

210012303221 is a wasteful number, since it uses less digits than its factorization.

210012303221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16124.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 210012303221 its reverse (122303210012), we get a palindrome (332315513233).

The spelling of 210012303221 in words is "two hundred ten billion, twelve million, three hundred three thousand, two hundred twenty-one".