2122020021841 has 2 divisors, whose sum is σ = 2122020021842. Its totient is φ = 2122020021840.

The previous prime is 2122020021791. The next prime is 2122020021883. The reversal of 2122020021841 is 1481200202212.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2118541381441 + 3478640400 = 1455521^2 + 58980^2 .

It is a cyclic number.

It is not a de Polignac number, because 2122020021841 - 2³⁷ = 1984581068369 is a prime.

It is not a weakly prime, because it can be changed into another prime (2122020028841) 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, 1061010010920 + 1061010010921.

It is an arithmetic number, because the mean of its divisors is an integer number (1061010010921).

Almost surely, 2^{2122020021841} is an apocalyptic number.

It is an amenable number.

2122020021841 is a deficient number, since it is larger than the sum of its proper divisors (1).

2122020021841 is an equidigital number, since it uses as much as digits as its factorization.

2122020021841 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1024, while the sum is 25.

The spelling of 2122020021841 in words is "two trillion, one hundred twenty-two billion, twenty million, twenty-one thousand, eight hundred forty-one".