10020320220221 has 2 divisors, whose sum is σ = 10020320220222. Its totient is φ = 10020320220220.

The previous prime is 10020320220217. The next prime is 10020320220241. The reversal of 10020320220221 is 12202202302001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9405446248900 + 614873971321 = 3066830^2 + 784139^2 .

It is a cyclic number.

It is not a de Polignac number, because 10020320220221 - 2² = 10020320220217 is a prime.

It is a super-3 number, since 3×10020320220221³ (a number of 40 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10020320220221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10020320220241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5010160110110 + 5010160110111.

It is an arithmetic number, because the mean of its divisors is an integer number (5010160110111).

Almost surely, 2^{10020320220221} is an apocalyptic number.

It is an amenable number.

10020320220221 is a deficient number, since it is larger than the sum of its proper divisors (1).

10020320220221 is an equidigital number, since it uses as much as digits as its factorization.

10020320220221 is an evil number, because the sum of its binary digits is even.

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

Adding to 10020320220221 its reverse (12202202302001), we get a palindrome (22222522522222).

The spelling of 10020320220221 in words is "ten trillion, twenty billion, three hundred twenty million, two hundred twenty thousand, two hundred twenty-one".