221330221004 has 12 divisors (see below), whose sum is σ = 387331300944. Its totient is φ = 110664135024.

The previous prime is 221330220983. The next prime is 221330221031. The reversal of 221330221004 is 400122033122.

221330221004 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 564002 + ... + 872214.

It is an arithmetic number, because the mean of its divisors is an integer number (32277608412).

Almost surely, 2^221330221004 is an apocalyptic number.

It is an amenable number.

221330221004 is a deficient number, since it is larger than the sum of its proper divisors (166001079940).

221330221004 is a wasteful number, since it uses less digits than its factorization.

221330221004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487744 (or 487742 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 221330221004 its reverse (400122033122), we get a palindrome (621452254126).

The spelling of 221330221004 in words is "two hundred twenty-one billion, three hundred thirty million, two hundred twenty-one thousand, four".