221330202404 has 12 divisors (see below), whose sum is σ = 387492620928. Its totient is φ = 110618025000.

The previous prime is 221330202377. The next prime is 221330202449. The reversal of 221330202404 is 404202033122.

221330202404 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 221330202404.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 11758472 + ... + 11777279.

It is an arithmetic number, because the mean of its divisors is an integer number (32291051744).

Almost surely, 2^221330202404 is an apocalyptic number.

It is an amenable number.

221330202404 is a deficient number, since it is larger than the sum of its proper divisors (166162418524).

221330202404 is a wasteful number, since it uses less digits than its factorization.

221330202404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23538106 (or 23538104 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 221330202404 its reverse (404202033122), we get a palindrome (625532235526).

The spelling of 221330202404 in words is "two hundred twenty-one billion, three hundred thirty million, two hundred two thousand, four hundred four".