200103221 has 4 divisors (see below), whose sum is σ = 200201100. Its totient is φ = 200005344.

The previous prime is 200103217. The next prime is 200103223. The reversal of 200103221 is 122301002.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 126315121 + 73788100 = 11239^2 + 8590^2 .

It is a cyclic number.

It is not a de Polignac number, because 200103221 - 2² = 200103217 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200103223) 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 in 3 ways as a sum of consecutive naturals, for example, 45806 + ... + 49983.

It is an arithmetic number, because the mean of its divisors is an integer number (50050275).

Almost surely, 2^200103221 is an apocalyptic number.

It is an amenable number.

200103221 is a deficient number, since it is larger than the sum of its proper divisors (97879).

200103221 is an equidigital number, since it uses as much as digits as its factorization.

200103221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97878.

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

The square root of 200103221 is about 14145.7845664353. The cubic root of 200103221 is about 584.9041370180.

Adding to 200103221 its reverse (122301002), we get a palindrome (322404223).

The spelling of 200103221 in words is "two hundred million, one hundred three thousand, two hundred twenty-one".