221132323 has 8 divisors (see below), whose sum is σ = 223526160. Its totient is φ = 218749440.

The previous prime is 221132291. The next prime is 221132341. The reversal of 221132323 is 323231122.

221132323 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 221132323 - 2⁵ = 221132291 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 221132323.

It is not an unprimeable number, because it can be changed into a prime (221132363) 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, 41643 + ... + 46651.

It is an arithmetic number, because the mean of its divisors is an integer number (27940770).

Almost surely, 2^221132323 is an apocalyptic number.

221132323 is a deficient number, since it is larger than the sum of its proper divisors (2393837).

221132323 is a wasteful number, since it uses less digits than its factorization.

221132323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5477.

The product of its digits is 432, while the sum is 19.

The square root of 221132323 is about 14870.5185854428. The cubic root of 221132323 is about 604.7150018001.

Adding to 221132323 its reverse (323231122), we get a palindrome (544363445).

The spelling of 221132323 in words is "two hundred twenty-one million, one hundred thirty-two thousand, three hundred twenty-three".