203103022221 has 24 divisors (see below), whose sum is σ = 320126006304. Its totient is φ = 123060094560.

The previous prime is 203103022139. The next prime is 203103022223. The reversal of 203103022221 is 122220301302.

203103022221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 203103022221 - 2¹⁹ = 203102497933 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 203103022194 and 203103022203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203103022223) 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, 105750 + ... + 646056.

It is an arithmetic number, because the mean of its divisors is an integer number (13338583596).

Almost surely, 2^203103022221 is an apocalyptic number.

It is an amenable number.

203103022221 is a deficient number, since it is larger than the sum of its proper divisors (117022984083).

203103022221 is a wasteful number, since it uses less digits than its factorization.

203103022221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 544121 (or 544118 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 203103022221 its reverse (122220301302), we get a palindrome (325323323523).

The spelling of 203103022221 in words is "two hundred three billion, one hundred three million, twenty-two thousand, two hundred twenty-one".