22020302021321 has 2 divisors, whose sum is σ = 22020302021322. Its totient is φ = 22020302021320.

The previous prime is 22020302021317. The next prime is 22020302021323. The reversal of 22020302021321 is 12312020302022.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19283858212921 + 2736443808400 = 4391339^2 + 1654220^2 .

It is a cyclic number.

It is not a de Polignac number, because 22020302021321 - 2² = 22020302021317 is a prime.

It is a super-2 number, since 2×22020302021321² (a number of 27 digits) contains 22 as substring.

Together with 22020302021323, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 22020302021293 and 22020302021302.

It is not a weakly prime, because it can be changed into another prime (22020302021323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11010151010660 + 11010151010661.

It is an arithmetic number, because the mean of its divisors is an integer number (11010151010661).

Almost surely, 2^{22020302021321} is an apocalyptic number.

It is an amenable number.

22020302021321 is a deficient number, since it is larger than the sum of its proper divisors (1).

22020302021321 is an equidigital number, since it uses as much as digits as its factorization.

22020302021321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 22020302021321 its reverse (12312020302022), we get a palindrome (34332322323343).

The spelling of 22020302021321 in words is "twenty-two trillion, twenty billion, three hundred two million, twenty-one thousand, three hundred twenty-one".