22020203311321 has 2 divisors, whose sum is σ = 22020203311322. Its totient is φ = 22020203311320.

The previous prime is 22020203311307. The next prime is 22020203311339. The reversal of 22020203311321 is 12311330202022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20950759840000 + 1069443471321 = 4577200^2 + 1034139^2 .

It is a cyclic number.

It is not a de Polignac number, because 22020203311321 - 2¹³ = 22020203303129 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22020203311292 and 22020203311301.

It is not a weakly prime, because it can be changed into another prime (22020203371321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11010101655660 + 11010101655661.

It is an arithmetic number, because the mean of its divisors is an integer number (11010101655661).

Almost surely, 2^{22020203311321} is an apocalyptic number.

It is an amenable number.

22020203311321 is a deficient number, since it is larger than the sum of its proper divisors (1).

22020203311321 is an equidigital number, since it uses as much as digits as its factorization.

22020203311321 is an evil number, because the sum of its binary digits is even.

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

Adding to 22020203311321 its reverse (12311330202022), we get a palindrome (34331533513343).

The spelling of 22020203311321 in words is "twenty-two trillion, twenty billion, two hundred three million, three hundred eleven thousand, three hundred twenty-one".