22303545330221 has 2 divisors, whose sum is σ = 22303545330222. Its totient is φ = 22303545330220.

The previous prime is 22303545330197. The next prime is 22303545330263. The reversal of 22303545330221 is 12203354530322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13758090456100 + 8545454874121 = 3709190^2 + 2923261^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22303545330221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22303545300221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11151772665110 + 11151772665111.

It is an arithmetic number, because the mean of its divisors is an integer number (11151772665111).

Almost surely, 2^{22303545330221} is an apocalyptic number.

It is an amenable number.

22303545330221 is a deficient number, since it is larger than the sum of its proper divisors (1).

22303545330221 is an equidigital number, since it uses as much as digits as its factorization.

22303545330221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 129600, while the sum is 35.

Adding to 22303545330221 its reverse (12203354530322), we get a palindrome (34506899860543).

The spelling of 22303545330221 in words is "twenty-two trillion, three hundred three billion, five hundred forty-five million, three hundred thirty thousand, two hundred twenty-one".