220330512305 has 4 divisors (see below), whose sum is σ = 264396614772. Its totient is φ = 176264409840.

The previous prime is 220330512289. The next prime is 220330512349. The reversal of 220330512305 is 503215033022.

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

It can be written as a sum of positive squares in 2 ways, for example, as 51153773584 + 169176738721 = 226172^2 + 411311^2 .

It is not a de Polignac number, because 220330512305 - 2⁴ = 220330512289 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22033051226 + ... + 22033051235.

It is an arithmetic number, because the mean of its divisors is an integer number (66099153693).

Almost surely, 2^220330512305 is an apocalyptic number.

It is an amenable number.

220330512305 is a deficient number, since it is larger than the sum of its proper divisors (44066102467).

220330512305 is an equidigital number, since it uses as much as digits as its factorization.

220330512305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44066102466.

The product of its (nonzero) digits is 5400, while the sum is 26.

Adding to 220330512305 its reverse (503215033022), we get a palindrome (723545545327).

The spelling of 220330512305 in words is "two hundred twenty billion, three hundred thirty million, five hundred twelve thousand, three hundred five".