12221300303221 has 4 divisors (see below), whose sum is σ = 12234774725632. Its totient is φ = 12207825880812.

The previous prime is 12221300303213. The next prime is 12221300303257. The reversal of 12221300303221 is 12230300312221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12221300303221 - 2³ = 12221300303213 is a prime.

It is a super-2 number, since 2×12221300303221² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12221300303192 and 12221300303201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12221300303521) 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, 6737209845 + ... + 6737211658.

It is an arithmetic number, because the mean of its divisors is an integer number (3058693681408).

Almost surely, 2^{12221300303221} is an apocalyptic number.

It is an amenable number.

12221300303221 is a deficient number, since it is larger than the sum of its proper divisors (13474422411).

12221300303221 is an equidigital number, since it uses as much as digits as its factorization.

12221300303221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13474422410.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 12221300303221 its reverse (12230300312221), we get a palindrome (24451600615442).

It can be divided in two parts, 12221300 and 303221, that added together give a square (12524521 = 3539²).

The spelling of 12221300303221 in words is "twelve trillion, two hundred twenty-one billion, three hundred million, three hundred three thousand, two hundred twenty-one".