2020221022021 has 2 divisors, whose sum is σ = 2020221022022. Its totient is φ = 2020221022020.

The previous prime is 2020221022003. The next prime is 2020221022103. The reversal of 2020221022021 is 1202201220202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1855831319521 + 164389702500 = 1362289^2 + 405450^2 .

It is a cyclic number.

It is not a de Polignac number, because 2020221022021 - 2¹³ = 2020221013829 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2020221021986 and 2020221022004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2020221022321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010110511010 + 1010110511011.

It is an arithmetic number, because the mean of its divisors is an integer number (1010110511011).

Almost surely, 2^{2020221022021} is an apocalyptic number.

It is an amenable number.

2020221022021 is a deficient number, since it is larger than the sum of its proper divisors (1).

2020221022021 is an equidigital number, since it uses as much as digits as its factorization.

2020221022021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 2020221022021 its reverse (1202201220202), we get a palindrome (3222422242223).

The spelling of 2020221022021 in words is "two trillion, twenty billion, two hundred twenty-one million, twenty-two thousand, twenty-one".