12203041221 has 48 divisors (see below), whose sum is σ = 20868956160. Its totient is φ = 6724075680.

The previous prime is 12203041211. The next prime is 12203041223. The reversal of 12203041221 is 12214030221.

It is a happy number.

12203041221 is a `hidden beast` number, since 1 + 220 + 30 + 412 + 2 + 1 = 666.

It is not a de Polignac number, because 12203041221 - 2⁷ = 12203041093 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12203041194 and 12203041203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12203041223) 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 47 ways as a sum of consecutive naturals, for example, 541660 + ... + 563738.

It is an arithmetic number, because the mean of its divisors is an integer number (434769920).

Almost surely, 2^12203041221 is an apocalyptic number.

It is an amenable number.

12203041221 is a deficient number, since it is larger than the sum of its proper divisors (8665914939).

12203041221 is a wasteful number, since it uses less digits than its factorization.

12203041221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22406 (or 22403 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 12203041221 its reverse (12214030221), we get a palindrome (24417071442).

The spelling of 12203041221 in words is "twelve billion, two hundred three million, forty-one thousand, two hundred twenty-one".