100220203 has 2 divisors, whose sum is σ = 100220204.
Its totient is φ = 100220202.
The previous prime is 100220189. The next prime is 100220209. The reversal of 100220203 is 302022001.
It is a strong prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-100220203 is a prime.
It is a super-2 number, since 2×1002202032 = 20088178178722418, which contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 100220203.
It is not a weakly prime, because it can be changed into another prime (100220209) 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, 50110101 + 50110102.
It is an arithmetic number, because the mean of its divisors is an integer number (50110102).
Almost surely, 2100220203 is an apocalyptic number.
100220203 is a deficient number, since it is larger than the sum of its proper divisors (1).
100220203 is an equidigital number, since it uses as much as digits as its factorization.
100220203 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 24, while the sum is 10.
The square root of 100220203 is about 10011.0040954941.
The cubic root of 100220203 is about 464.4993308535.
Adding to 100220203 its reverse (302022001), we get a palindrome (402242204).
The spelling of 100220203 in words is "one hundred million, two hundred twenty thousand, two hundred three".