2021021202202 has 12 divisors (see below), whose sum is σ = 3199483704906. Its totient is φ = 957325832280.

The previous prime is 2021021202197. The next prime is 2021021202209. The reversal of 2021021202202 is 2022021201202.

It can be written as a sum of positive squares in only one way, i.e., 1864101433041 + 156919769161 = 1365321^2 + 396131^2 .

It is not an unprimeable number, because it can be changed into a prime (2021021202209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1399598449 + ... + 1399599892.

Almost surely, 2^{2021021202202} is an apocalyptic number.

2021021202202 is a deficient number, since it is larger than the sum of its proper divisors (1178462502704).

2021021202202 is a wasteful number, since it uses less digits than its factorization.

2021021202202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2799198381 (or 2799198362 counting only the distinct ones).

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

Adding to 2021021202202 its reverse (2022021201202), we get a palindrome (4043042403404).

The spelling of 2021021202202 in words is "two trillion, twenty-one billion, twenty-one million, two hundred two thousand, two hundred two".