221013330324 has 24 divisors (see below), whose sum is σ = 529635549408. Its totient is φ = 71679998880.

The previous prime is 221013330283. The next prime is 221013330337. The reversal of 221013330324 is 423033310122.

It is a junction number, because it is equal to n+sod(n) for n = 221013330294 and 221013330303.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 248888442 + ... + 248889329.

It is an arithmetic number, because the mean of its divisors is an integer number (22068147892).

Almost surely, 2^221013330324 is an apocalyptic number.

It is an amenable number.

221013330324 is an abundant number, since it is smaller than the sum of its proper divisors (308622219084).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221013330324 is a wasteful number, since it uses less digits than its factorization.

221013330324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497777815 (or 497777813 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 221013330324 its reverse (423033310122), we get a palindrome (644046640446).

The spelling of 221013330324 in words is "two hundred twenty-one billion, thirteen million, three hundred thirty thousand, three hundred twenty-four".