221233323 has 16 divisors (see below), whose sum is σ = 310002176. Its totient is φ = 140162400.

The previous prime is 221233319. The next prime is 221233339. The reversal of 221233323 is 323332122.

It is not a de Polignac number, because 221233323 - 2² = 221233319 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 221233323.

It is not an unprimeable number, because it can be changed into a prime (221233723) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18403 + ... + 27948.

It is an arithmetic number, because the mean of its divisors is an integer number (19375136).

Almost surely, 2^221233323 is an apocalyptic number.

221233323 is a deficient number, since it is larger than the sum of its proper divisors (88768853).

221233323 is a wasteful number, since it uses less digits than its factorization.

221233323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46434.

The product of its digits is 1296, while the sum is 21.

The square root of 221233323 is about 14873.9141788569. The cubic root of 221233323 is about 604.8070536510.

Adding to 221233323 its reverse (323332122), we get a palindrome (544565445).

It can be divided in two parts, 2212333 and 23, that added together give a triangular number (2212356 = T₂₁₀₃).

The spelling of 221233323 in words is "two hundred twenty-one million, two hundred thirty-three thousand, three hundred twenty-three".