221330312122323 has 8 divisors (see below), whose sum is σ = 295110338971536. Its totient is φ = 147551913344000.

The previous prime is 221330312122303. The next prime is 221330312122351. The reversal of 221330312122323 is 323221213033122.

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 221330312122323 - 2²⁰ = 221330311073747 is a prime.

It is not an unprimeable number, because it can be changed into a prime (221330312122303) 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, 406700478 + ... + 407244323.

It is an arithmetic number, because the mean of its divisors is an integer number (36888792371442).

Almost surely, 2^{221330312122323} is an apocalyptic number.

221330312122323 is a deficient number, since it is larger than the sum of its proper divisors (73780026849213).

221330312122323 is an equidigital number, since it uses as much as digits as its factorization.

221330312122323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 814035445.

The product of its (nonzero) digits is 15552, while the sum is 30.

Adding to 221330312122323 its reverse (323221213033122), we get a palindrome (544551525155445).

The spelling of 221330312122323 in words is "two hundred twenty-one trillion, three hundred thirty billion, three hundred twelve million, one hundred twenty-two thousand, three hundred twenty-three".