212210303 has 4 divisors (see below), whose sum is σ = 224693280. Its totient is φ = 199727328.

The previous prime is 212210293. The next prime is 212210309. The reversal of 212210303 is 303012212.

It is a happy number.

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 212210303 - 2¹⁸ = 211948159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212210309) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6241463 + ... + 6241496.

It is an arithmetic number, because the mean of its divisors is an integer number (56173320).

Almost surely, 2^212210303 is an apocalyptic number.

212210303 is a deficient number, since it is larger than the sum of its proper divisors (12482977).

212210303 is a wasteful number, since it uses less digits than its factorization.

212210303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12482976.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 212210303 is about 14567.4398231124. The cubic root of 212210303 is about 596.4702973467.

Adding to 212210303 its reverse (303012212), we get a palindrome (515222515).

The spelling of 212210303 in words is "two hundred twelve million, two hundred ten thousand, three hundred three".