12302202221 has 2 divisors, whose sum is σ = 12302202222. Its totient is φ = 12302202220.

The previous prime is 12302202139. The next prime is 12302202313. The reversal of 12302202221 is 12220220321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12290161321 + 12040900 = 110861^2 + 3470^2 .

It is a cyclic number.

It is not a de Polignac number, because 12302202221 - 2¹⁴ = 12302185837 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12302202221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12302202721) 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 as a sum of consecutive naturals, namely, 6151101110 + 6151101111.

It is an arithmetic number, because the mean of its divisors is an integer number (6151101111).

Almost surely, 2^12302202221 is an apocalyptic number.

It is an amenable number.

12302202221 is a deficient number, since it is larger than the sum of its proper divisors (1).

12302202221 is an equidigital number, since it uses as much as digits as its factorization.

12302202221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 12302202221 its reverse (12220220321), we get a palindrome (24522422542).

The spelling of 12302202221 in words is "twelve billion, three hundred two million, two hundred two thousand, two hundred twenty-one".