20032221203 has 4 divisors (see below), whose sum is σ = 20086805280. Its totient is φ = 19977637128.

The previous prime is 20032221199. The next prime is 20032221233. The reversal of 20032221203 is 30212223002.

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

It is a cyclic number.

It is not a de Polignac number, because 20032221203 - 2² = 20032221199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20032221233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27291488 + ... + 27292221.

It is an arithmetic number, because the mean of its divisors is an integer number (5021701320).

Almost surely, 2^20032221203 is an apocalyptic number.

20032221203 is a deficient number, since it is larger than the sum of its proper divisors (54584077).

20032221203 is an equidigital number, since it uses as much as digits as its factorization.

20032221203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54584076.

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 20032221203 its reverse (30212223002), we get a palindrome (50244444205).

The spelling of 20032221203 in words is "twenty billion, thirty-two million, two hundred twenty-one thousand, two hundred three".