221322003321 has 8 divisors (see below), whose sum is σ = 295204866624. Its totient is φ = 147493571120.

The previous prime is 221322003311. The next prime is 221322003323. The reversal of 221322003321 is 123300223122.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 221322003321 - 2³¹ = 219174519673 is a prime.

It is a super-3 number, since 3×221322003321³ (a number of 35 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (221322003323) 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, 13598286 + ... + 13614551.

It is an arithmetic number, because the mean of its divisors is an integer number (36900608328).

Almost surely, 2^221322003321 is an apocalyptic number.

It is an amenable number.

221322003321 is a deficient number, since it is larger than the sum of its proper divisors (73882863303).

221322003321 is a wasteful number, since it uses less digits than its factorization.

221322003321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27215551.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 221322003321 its reverse (123300223122), we get a palindrome (344622226443).

The spelling of 221322003321 in words is "two hundred twenty-one billion, three hundred twenty-two million, three thousand, three hundred twenty-one".