100221000203 has 4 divisors (see below), whose sum is σ = 100241420880. Its totient is φ = 100200579528.

The previous prime is 100221000179. The next prime is 100221000227. The reversal of 100221000203 is 302000122001.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 302000122001 = 23 ⋅13130440087.

It is an interprime number because it is at equal distance from previous prime (100221000179) and next prime (100221000227).

It is a cyclic number.

It is not a de Polignac number, because 100221000203 - 2³² = 95926032907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100221000233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10202975 + ... + 10212792.

It is an arithmetic number, because the mean of its divisors is an integer number (25060355220).

Almost surely, 2^100221000203 is an apocalyptic number.

100221000203 is a deficient number, since it is larger than the sum of its proper divisors (20420677).

100221000203 is an equidigital number, since it uses as much as digits as its factorization.

100221000203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20420676.

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 100221000203 its reverse (302000122001), we get a palindrome (402221122204).

The spelling of 100221000203 in words is "one hundred billion, two hundred twenty-one million, two hundred three", and thus it is an aban number.