2020331223221 has 2 divisors, whose sum is σ = 2020331223222. Its totient is φ = 2020331223220.

The previous prime is 2020331223191. The next prime is 2020331223223. The reversal of 2020331223221 is 1223221330202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1138732288996 + 881598934225 = 1067114^2 + 938935^2 .

It is a cyclic number.

It is not a de Polignac number, because 2020331223221 - 2¹⁰ = 2020331222197 is a prime.

It is a super-2 number, since 2×2020331223221² (a number of 25 digits) contains 22 as substring.

Together with 2020331223223, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2020331223223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010165611610 + 1010165611611.

It is an arithmetic number, because the mean of its divisors is an integer number (1010165611611).

Almost surely, 2^{2020331223221} is an apocalyptic number.

It is an amenable number.

2020331223221 is a deficient number, since it is larger than the sum of its proper divisors (1).

2020331223221 is an equidigital number, since it uses as much as digits as its factorization.

2020331223221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 2020331223221 its reverse (1223221330202), we get a palindrome (3243552553423).

The spelling of 2020331223221 in words is "two trillion, twenty billion, three hundred thirty-one million, two hundred twenty-three thousand, two hundred twenty-one".