20221000203 has 32 divisors (see below), whose sum is σ = 28199185920. Its totient is φ = 12879477216.

The previous prime is 20221000171. The next prime is 20221000231. The reversal of 20221000203 is 30200012202.

It is not a de Polignac number, because 20221000203 - 2⁵ = 20221000171 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20221000253) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22796626 + ... + 22797512.

It is an arithmetic number, because the mean of its divisors is an integer number (881224560).

Almost surely, 2^20221000203 is an apocalyptic number.

20221000203 is a deficient number, since it is larger than the sum of its proper divisors (7978185717).

20221000203 is an frugal number, since it uses more digits than its factorization.

20221000203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1104 (or 986 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

Adding to 20221000203 its reverse (30200012202), we get a palindrome (50421012405).

The spelling of 20221000203 in words is "twenty billion, two hundred twenty-one million, two hundred three", and thus it is an aban number.