223221001321 has 8 divisors (see below), whose sum is σ = 233575090560. Its totient is φ = 212920981152.

The previous prime is 223221001313. The next prime is 223221001343. The reversal of 223221001321 is 123100122322.

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 223221001321 - 2³ = 223221001313 is a prime.

It is a super-3 number, since 3×223221001321³ (a number of 35 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (223221001301) 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, 13508820 + ... + 13525333.

It is an arithmetic number, because the mean of its divisors is an integer number (29196886320).

Almost surely, 2^223221001321 is an apocalyptic number.

It is an amenable number.

223221001321 is a deficient number, since it is larger than the sum of its proper divisors (10354089239).

223221001321 is a wasteful number, since it uses less digits than its factorization.

223221001321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27034535.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 223221001321 its reverse (123100122322), we get a palindrome (346321123643).

The spelling of 223221001321 in words is "two hundred twenty-three billion, two hundred twenty-one million, one thousand, three hundred twenty-one".