2021202021073 has 2 divisors, whose sum is σ = 2021202021074. Its totient is φ = 2021202021072.

The previous prime is 2021202021067. The next prime is 2021202021103. The reversal of 2021202021073 is 3701202021202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2007869162049 + 13332859024 = 1416993^2 + 115468^2 .

It is a cyclic number.

It is not a de Polignac number, because 2021202021073 - 2⁹ = 2021202020561 is a prime.

It is not a weakly prime, because it can be changed into another prime (2021202021023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010601010536 + 1010601010537.

It is an arithmetic number, because the mean of its divisors is an integer number (1010601010537).

Almost surely, 2^{2021202021073} is an apocalyptic number.

It is an amenable number.

2021202021073 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021202021073 is an equidigital number, since it uses as much as digits as its factorization.

2021202021073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 672, while the sum is 22.

Adding to 2021202021073 its reverse (3701202021202), we get a palindrome (5722404042275).

The spelling of 2021202021073 in words is "two trillion, twenty-one billion, two hundred two million, twenty-one thousand, seventy-three".