222520323 has 8 divisors (see below), whose sum is σ = 296967168. Its totient is φ = 148210184.

The previous prime is 222520321. The next prime is 222520349. The reversal of 222520323 is 323025222.

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 222520323 - 2¹ = 222520321 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 222520323.

It is not an unprimeable number, because it can be changed into a prime (222520321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30315 + ... + 36932.

It is an arithmetic number, because the mean of its divisors is an integer number (37120896).

Almost surely, 2^222520323 is an apocalyptic number.

222520323 is a deficient number, since it is larger than the sum of its proper divisors (74446845).

222520323 is a wasteful number, since it uses less digits than its factorization.

222520323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68353.

The product of its (nonzero) digits is 1440, while the sum is 21.

The square root of 222520323 is about 14917.1151031290. The cubic root of 222520323 is about 605.9775857910.

Adding to 222520323 its reverse (323025222), we get a palindrome (545545545).

The spelling of 222520323 in words is "two hundred twenty-two million, five hundred twenty thousand, three hundred twenty-three".