12205213203 has 16 divisors (see below), whose sum is σ = 16555069440. Its totient is φ = 7997178816.

The previous prime is 12205213201. The next prime is 12205213219. The reversal of 12205213203 is 30231250221.

It is not a de Polignac number, because 12205213203 - 2¹ = 12205213201 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12205213203.

It is not an unprimeable number, because it can be changed into a prime (12205213201) 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 15 ways as a sum of consecutive naturals, for example, 92275 + ... + 181452.

It is an arithmetic number, because the mean of its divisors is an integer number (1034691840).

Almost surely, 2^12205213203 is an apocalyptic number.

12205213203 is a deficient number, since it is larger than the sum of its proper divisors (4349856237).

12205213203 is a wasteful number, since it uses less digits than its factorization.

12205213203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273986.

The product of its (nonzero) digits is 720, while the sum is 21.

Adding to 12205213203 its reverse (30231250221), we get a palindrome (42436463424).

The spelling of 12205213203 in words is "twelve billion, two hundred five million, two hundred thirteen thousand, two hundred three".