12302001001221 has 32 divisors (see below), whose sum is σ = 16778865345792. Its totient is φ = 8015026844160.

The previous prime is 12302001001153. The next prime is 12302001001231. The reversal of 12302001001221 is 12210010020321.

It is not a de Polignac number, because 12302001001221 - 2⁷ = 12302001001093 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12302001001221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12302001001231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 48723921 + ... + 48975753.

It is an arithmetic number, because the mean of its divisors is an integer number (524339542056).

Almost surely, 2^{12302001001221} is an apocalyptic number.

It is an amenable number.

12302001001221 is a deficient number, since it is larger than the sum of its proper divisors (4476864344571).

12302001001221 is a wasteful number, since it uses less digits than its factorization.

12302001001221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253613.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 12302001001221 its reverse (12210010020321), we get a palindrome (24512011021542).

The spelling of 12302001001221 in words is "twelve trillion, three hundred two billion, one million, one thousand, two hundred twenty-one".