221321320320104 has 32 divisors (see below), whose sum is σ = 415041229588320. Its totient is φ = 110643660490176.

The previous prime is 221321320320103. The next prime is 221321320320131. The reversal of 221321320320104 is 401023023123122.

It is not an unprimeable number, because it can be changed into a prime (221321320320101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1510889714 + ... + 1511036190.

It is an arithmetic number, because the mean of its divisors is an integer number (12970038424635).

Almost surely, 2^{221321320320104} is an apocalyptic number.

It is an amenable number.

221321320320104 is a deficient number, since it is larger than the sum of its proper divisors (193719909268216).

221321320320104 is a wasteful number, since it uses less digits than its factorization.

221321320320104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174209 (or 174205 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 221321320320104 its reverse (401023023123122), we get a palindrome (622344343443226).

The spelling of 221321320320104 in words is "two hundred twenty-one trillion, three hundred twenty-one billion, three hundred twenty million, three hundred twenty thousand, one hundred four".