12211212303 has 12 divisors (see below), whose sum is σ = 17688962200. Its totient is φ = 8117480016.

The previous prime is 12211212287. The next prime is 12211212311. The reversal of 12211212303 is 30321211221.

12211212303 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12211212303 - 2⁴ = 12211212287 is a prime.

It is a super-2 number, since 2×12211212303² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12211212373) 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 11 ways as a sum of consecutive naturals, for example, 1940701 + ... + 1946982.

Almost surely, 2^12211212303 is an apocalyptic number.

12211212303 is a deficient number, since it is larger than the sum of its proper divisors (5477749897).

12211212303 is a wasteful number, since it uses less digits than its factorization.

12211212303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3888038 (or 3888035 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 12211212303 its reverse (30321211221), we get a palindrome (42532423524).

The spelling of 12211212303 in words is "twelve billion, two hundred eleven million, two hundred twelve thousand, three hundred three".