12203222021321 has 4 divisors (see below), whose sum is σ = 12203484226500. Its totient is φ = 12202959816144.

The previous prime is 12203222021317. The next prime is 12203222021383. The reversal of 12203222021321 is 12312022230221.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10143021105721 + 2060200915600 = 3184811^2 + 1435340^2 .

It is a cyclic number.

It is not a de Polignac number, because 12203222021321 - 2² = 12203222021317 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12203222020321) 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, 131032766 + ... + 131125863.

It is an arithmetic number, because the mean of its divisors is an integer number (3050871056625).

Almost surely, 2^{12203222021321} is an apocalyptic number.

It is an amenable number.

12203222021321 is a deficient number, since it is larger than the sum of its proper divisors (262205179).

12203222021321 is an equidigital number, since it uses as much as digits as its factorization.

12203222021321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262205178.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 12203222021321 its reverse (12312022230221), we get a palindrome (24515244251542).

The spelling of 12203222021321 in words is "twelve trillion, two hundred three billion, two hundred twenty-two million, twenty-one thousand, three hundred twenty-one".