20202221203 has 2 divisors, whose sum is σ = 20202221204. Its totient is φ = 20202221202.

The previous prime is 20202221197. The next prime is 20202221213. The reversal of 20202221203 is 30212220202.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20202221203 is a prime.

It is not a weakly prime, because it can be changed into another prime (20202221213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10101110601 + 10101110602.

It is an arithmetic number, because the mean of its divisors is an integer number (10101110602).

Almost surely, 2^20202221203 is an apocalyptic number.

20202221203 is a deficient number, since it is larger than the sum of its proper divisors (1).

20202221203 is an equidigital number, since it uses as much as digits as its factorization.

20202221203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 20202221203 its reverse (30212220202), we get a palindrome (50414441405).

The spelling of 20202221203 in words is "twenty billion, two hundred two million, two hundred twenty-one thousand, two hundred three".