12213211003221 has 32 divisors (see below), whose sum is σ = 17283869475840. Its totient is φ = 7659896025600.

The previous prime is 12213211003199. The next prime is 12213211003229. The reversal of 12213211003221 is 12230011231221.

It is not a de Polignac number, because 12213211003221 - 2⁷ = 12213211003093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12213211003229) 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 31 ways as a sum of consecutive naturals, for example, 10828920 + ... + 11903441.

It is an arithmetic number, because the mean of its divisors is an integer number (540120921120).

Almost surely, 2^{12213211003221} is an apocalyptic number.

It is an amenable number.

12213211003221 is a deficient number, since it is larger than the sum of its proper divisors (5070658472619).

12213211003221 is a wasteful number, since it uses less digits than its factorization.

12213211003221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22732557.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 12213211003221 its reverse (12230011231221), we get a palindrome (24443222234442).

The spelling of 12213211003221 in words is "twelve trillion, two hundred thirteen billion, two hundred eleven million, three thousand, two hundred twenty-one".