2021201221133 has 2 divisors, whose sum is σ = 2021201221134. Its totient is φ = 2021201221132.

The previous prime is 2021201221049. The next prime is 2021201221199. The reversal of 2021201221133 is 3311221021202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1723071024964 + 298130196169 = 1312658^2 + 546013^2 .

It is a cyclic number.

It is not a de Polignac number, because 2021201221133 - 2²⁶ = 2021134112269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2021201221733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010600610566 + 1010600610567.

It is an arithmetic number, because the mean of its divisors is an integer number (1010600610567).

Almost surely, 2^{2021201221133} is an apocalyptic number.

It is an amenable number.

2021201221133 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021201221133 is an equidigital number, since it uses as much as digits as its factorization.

2021201221133 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 2021201221133 its reverse (3311221021202), we get a palindrome (5332422242335).

The spelling of 2021201221133 in words is "two trillion, twenty-one billion, two hundred one million, two hundred twenty-one thousand, one hundred thirty-three".