221333120321 has 8 divisors (see below), whose sum is σ = 238324796640. Its totient is φ = 204782786368.

The previous prime is 221333120311. The next prime is 221333120353. The reversal of 221333120321 is 123021333122.

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 221333120321 - 2⁶ = 221333120257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221333120311) 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, 110334551 + ... + 110336556.

It is an arithmetic number, because the mean of its divisors is an integer number (29790599580).

Almost surely, 2^221333120321 is an apocalyptic number.

It is an amenable number.

221333120321 is a deficient number, since it is larger than the sum of its proper divisors (16991676319).

221333120321 is a wasteful number, since it uses less digits than its factorization.

221333120321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220671183.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 221333120321 its reverse (123021333122), we get a palindrome (344354453443).

The spelling of 221333120321 in words is "two hundred twenty-one billion, three hundred thirty-three million, one hundred twenty thousand, three hundred twenty-one".