2122020022021 has 2 divisors, whose sum is σ = 2122020022022. Its totient is φ = 2122020022020.

The previous prime is 2122020021967. The next prime is 2122020022027. The reversal of 2122020022021 is 1202200202212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1543157733121 + 578862288900 = 1242239^2 + 760830^2 .

It is a cyclic number.

It is not a de Polignac number, because 2122020022021 - 2⁷ = 2122020021893 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2122020021986 and 2122020022004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2122020022027) 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, 1061010011010 + 1061010011011.

It is an arithmetic number, because the mean of its divisors is an integer number (1061010011011).

Almost surely, 2^{2122020022021} is an apocalyptic number.

It is an amenable number.

2122020022021 is a deficient number, since it is larger than the sum of its proper divisors (1).

2122020022021 is an equidigital number, since it uses as much as digits as its factorization.

2122020022021 is an odious number, because the sum of its binary digits is odd.

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

Adding to 2122020022021 its reverse (1202200202212), we get a palindrome (3324220224233).

The spelling of 2122020022021 in words is "two trillion, one hundred twenty-two billion, twenty million, twenty-two thousand, twenty-one".