2021020022201 has 2 divisors, whose sum is σ = 2021020022202. Its totient is φ = 2021020022200.

The previous prime is 2021020022191. The next prime is 2021020022249. The reversal of 2021020022201 is 1022200201202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1815608028025 + 205411994176 = 1347445^2 + 453224^2 .

It is a cyclic number.

It is not a de Polignac number, because 2021020022201 - 2¹⁸ = 2021019760057 is a prime.

It is not a weakly prime, because it can be changed into another prime (2021020022501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010510011100 + 1010510011101.

It is an arithmetic number, because the mean of its divisors is an integer number (1010510011101).

Almost surely, 2^{2021020022201} is an apocalyptic number.

It is an amenable number.

2021020022201 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021020022201 is an equidigital number, since it uses as much as digits as its factorization.

2021020022201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 2021020022201 its reverse (1022200201202), we get a palindrome (3043220223403).

The spelling of 2021020022201 in words is "two trillion, twenty-one billion, twenty million, twenty-two thousand, two hundred one".