212021330203 has 4 divisors (see below), whose sum is σ = 212040705600. Its totient is φ = 212001954808.

The previous prime is 212021330197. The next prime is 212021330207. The reversal of 212021330203 is 302033120212.

212021330203 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 a de Polignac number, because none of the positive numbers 2^k-212021330203 is a prime.

It is a super-2 number, since 2×212021330203² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212021330207) 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, 9671275 + ... + 9693172.

It is an arithmetic number, because the mean of its divisors is an integer number (53010176400).

Almost surely, 2^212021330203 is an apocalyptic number.

212021330203 is a deficient number, since it is larger than the sum of its proper divisors (19375397).

212021330203 is a wasteful number, since it uses less digits than its factorization.

212021330203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19375396.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 212021330203 its reverse (302033120212), we get a palindrome (514054450415).

The spelling of 212021330203 in words is "two hundred twelve billion, twenty-one million, three hundred thirty thousand, two hundred three".