221331210233 has 8 divisors (see below), whose sum is σ = 256725327552. Its totient is φ = 186880936176.

The previous prime is 221331210209. The next prime is 221331210283. The reversal of 221331210233 is 332012133122.

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 221331210233 - 2¹⁴ = 221331193849 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 221331210199 and 221331210208.

It is not an unprimeable number, because it can be changed into a prime (221331210283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 235960310 + ... + 235961247.

It is an arithmetic number, because the mean of its divisors is an integer number (32090665944).

Almost surely, 2^221331210233 is an apocalyptic number.

It is an amenable number.

221331210233 is a deficient number, since it is larger than the sum of its proper divisors (35394117319).

221331210233 is an equidigital number, since it uses as much as digits as its factorization.

221331210233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471921631.

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

Adding to 221331210233 its reverse (332012133122), we get a palindrome (553343343355).

The spelling of 221331210233 in words is "two hundred twenty-one billion, three hundred thirty-one million, two hundred ten thousand, two hundred thirty-three".