2021020114121 has 2 divisors, whose sum is σ = 2021020114122. Its totient is φ = 2021020114120.

The previous prime is 2021020114109. The next prime is 2021020114151. The reversal of 2021020114121 is 1214110201202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1937608320400 + 83411793721 = 1391980^2 + 288811^2 .

It is a cyclic number.

It is not a de Polignac number, because 2021020114121 - 2¹⁰ = 2021020113097 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2021020114121.

It is not a weakly prime, because it can be changed into another prime (2021020114151) 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, 1010510057060 + 1010510057061.

It is an arithmetic number, because the mean of its divisors is an integer number (1010510057061).

Almost surely, 2^{2021020114121} is an apocalyptic number.

It is an amenable number.

2021020114121 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021020114121 is an equidigital number, since it uses as much as digits as its factorization.

2021020114121 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 17.

Adding to 2021020114121 its reverse (1214110201202), we get a palindrome (3235130315323).

The spelling of 2021020114121 in words is "two trillion, twenty-one billion, twenty million, one hundred fourteen thousand, one hundred twenty-one".