20202221403 has 24 divisors (see below), whose sum is σ = 35915061728. Its totient is φ = 10656116352.

The previous prime is 20202221401. The next prime is 20202221443. The reversal of 20202221403 is 30412220202.

20202221403 is a `hidden beast` number, since 20 + 20 + 2 + 221 + 403 = 666.

It is not a de Polignac number, because 20202221403 - 2¹ = 20202221401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20202221401) 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 23 ways as a sum of consecutive naturals, for example, 12332650 + ... + 12334287.

Almost surely, 2^20202221403 is an apocalyptic number.

20202221403 is a deficient number, since it is larger than the sum of its proper divisors (15712840325).

20202221403 is a wasteful number, since it uses less digits than its factorization.

20202221403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24666963 (or 24666960 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 20202221403 its reverse (30412220202), we get a palindrome (50614441605).

The spelling of 20202221403 in words is "twenty billion, two hundred two million, two hundred twenty-one thousand, four hundred three".