221324442020323 has 4 divisors (see below), whose sum is σ = 221324486493528. Its totient is φ = 221324397547120.

The previous prime is 221324442020299. The next prime is 221324442020347. The reversal of 221324442020323 is 323020244423122.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (221324442020299) and next prime (221324442020347).

It is a cyclic number.

It is not a de Polignac number, because 221324442020323 - 2¹⁷ = 221324441889251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221324442029323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13672213 + ... + 25091398.

It is an arithmetic number, because the mean of its divisors is an integer number (55331121623382).

Almost surely, 2^{221324442020323} is an apocalyptic number.

221324442020323 is a deficient number, since it is larger than the sum of its proper divisors (44473205).

221324442020323 is an equidigital number, since it uses as much as digits as its factorization.

221324442020323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44473204.

The product of its (nonzero) digits is 110592, while the sum is 34.

Adding to 221324442020323 its reverse (323020244423122), we get a palindrome (544344686443445).

The spelling of 221324442020323 in words is "two hundred twenty-one trillion, three hundred twenty-four billion, four hundred forty-two million, twenty thousand, three hundred twenty-three".