12203233021 has 16 divisors (see below), whose sum is σ = 14037753600. Its totient is φ = 10391673600.

The previous prime is 12203232997. The next prime is 12203233051. The reversal of 12203233021 is 12033230221.

It is not a de Polignac number, because 12203233021 - 2¹⁹ = 12202708733 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 12203233021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12203233051) 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, 970245 + ... + 982741.

It is an arithmetic number, because the mean of its divisors is an integer number (877359600).

Almost surely, 2^12203233021 is an apocalyptic number.

It is an amenable number.

12203233021 is a deficient number, since it is larger than the sum of its proper divisors (1834520579).

12203233021 is a wasteful number, since it uses less digits than its factorization.

12203233021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13404.

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

Adding to 12203233021 its reverse (12033230221), we get a palindrome (24236463242).

The spelling of 12203233021 in words is "twelve billion, two hundred three million, two hundred thirty-three thousand, twenty-one".