20032202203021 has 4 divisors (see below), whose sum is σ = 20032275014172. Its totient is φ = 20032129391872.

The previous prime is 20032202203001. The next prime is 20032202203049. The reversal of 20032202203021 is 12030220223002.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9881032714921 + 10151169488100 = 3143411^2 + 3186090^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20032202203021 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 20032202203021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20032202203001) 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 in 3 ways as a sum of consecutive naturals, for example, 35991316 + ... + 36543661.

It is an arithmetic number, because the mean of its divisors is an integer number (5008068753543).

Almost surely, 2^{20032202203021} is an apocalyptic number.

It is an amenable number.

20032202203021 is a deficient number, since it is larger than the sum of its proper divisors (72811151).

20032202203021 is an equidigital number, since it uses as much as digits as its factorization.

20032202203021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72811150.

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 20032202203021 its reverse (12030220223002), we get a palindrome (32062422426023).

The spelling of 20032202203021 in words is "twenty trillion, thirty-two billion, two hundred two million, two hundred three thousand, twenty-one".