202133302021 has 6 divisors (see below), whose sum is σ = 235134657510. Its totient is φ = 173257115976.

The previous prime is 202133302003. The next prime is 202133302057. The reversal of 202133302021 is 120203331202.

It can be written as a sum of positive squares in only one way, i.e., 130996944225 + 71136357796 = 361935^2 + 266714^2 .

It is not a de Polignac number, because 202133302021 - 2⁹ = 202133301509 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 202133302021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202133302421) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2062584666 + ... + 2062584763.

It is an arithmetic number, because the mean of its divisors is an integer number (39189109585).

Almost surely, 2^202133302021 is an apocalyptic number.

It is an amenable number.

202133302021 is a deficient number, since it is larger than the sum of its proper divisors (33001355489).

202133302021 is an equidigital number, since it uses as much as digits as its factorization.

202133302021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4125169443 (or 4125169436 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 202133302021 its reverse (120203331202), we get a palindrome (322336633223).

The spelling of 202133302021 in words is "two hundred two billion, one hundred thirty-three million, three hundred two thousand, twenty-one".