221231003330 has 16 divisors (see below), whose sum is σ = 407928387384. Its totient is φ = 86334049920.

The previous prime is 221231003311. The next prime is 221231003333. The reversal of 221231003330 is 33300132122.

It can be written as a sum of positive squares in 4 ways, for example, as 164500814569 + 56730188761 = 405587^2 + 238181^2 .

It is not an unprimeable number, because it can be changed into a prime (221231003333) 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 7 ways as a sum of consecutive naturals, for example, 269793497 + ... + 269794316.

Almost surely, 2^221231003330 is an apocalyptic number.

221231003330 is a deficient number, since it is larger than the sum of its proper divisors (186697384054).

221231003330 is a wasteful number, since it uses less digits than its factorization.

221231003330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 539587861.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 221231003330 its reverse (33300132122), we get a palindrome (254531135452).

The spelling of 221231003330 in words is "two hundred twenty-one billion, two hundred thirty-one million, three thousand, three hundred thirty".