221321032123230 has 96 divisors (see below), whose sum is σ = 619701798774240. Its totient is φ = 54478767571200.

The previous prime is 221321032123229. The next prime is 221321032123297. The reversal of 221321032123230 is 32321230123122.

221321032123230 is a `hidden beast` number, since 2 + 2 + 1 + 3 + 2 + 10 + 321 + 2 + 323 + 0 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 221321032123194 and 221321032123203.

It is a congruent number.

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 47 ways as a sum of consecutive naturals, for example, 414930205 + ... + 415463255.

It is an arithmetic number, because the mean of its divisors is an integer number (6455227070565).

Almost surely, 2^{221321032123230} is an apocalyptic number.

221321032123230 is an abundant number, since it is smaller than the sum of its proper divisors (398380766651010).

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

221321032123230 is a wasteful number, since it uses less digits than its factorization.

221321032123230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 887946 (or 887943 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 221321032123230 its reverse (32321230123122), we get a palindrome (253642262246352).

The spelling of 221321032123230 in words is "two hundred twenty-one trillion, three hundred twenty-one billion, thirty-two million, one hundred twenty-three thousand, two hundred thirty".