210212421303 has 4 divisors (see below), whose sum is σ = 280283228408. Its totient is φ = 140141614200.

The previous prime is 210212421301. The next prime is 210212421329. The reversal of 210212421303 is 303124212012.

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

It is not a de Polignac number, because 210212421303 - 2¹ = 210212421301 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 210212421303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210212421301) 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 3 ways as a sum of consecutive naturals, for example, 35035403548 + ... + 35035403553.

It is an arithmetic number, because the mean of its divisors is an integer number (70070807102).

Almost surely, 2^210212421303 is an apocalyptic number.

210212421303 is a deficient number, since it is larger than the sum of its proper divisors (70070807105).

210212421303 is an equidigital number, since it uses as much as digits as its factorization.

210212421303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70070807104.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 210212421303 its reverse (303124212012), we get a palindrome (513336633315).

The spelling of 210212421303 in words is "two hundred ten billion, two hundred twelve million, four hundred twenty-one thousand, three hundred three".