232221005 has 4 divisors (see below), whose sum is σ = 278665212. Its totient is φ = 185776800.

The previous prime is 232221001. The next prime is 232221013. The reversal of 232221005 is 500122232.

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 161442436 + 70778569 = 12706^2 + 8413^2 .

It is not a de Polignac number, because 232221005 - 2² = 232221001 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232221001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23222096 + ... + 23222105.

It is an arithmetic number, because the mean of its divisors is an integer number (69666303).

Almost surely, 2^232221005 is an apocalyptic number.

It is an amenable number.

232221005 is a deficient number, since it is larger than the sum of its proper divisors (46444207).

232221005 is an equidigital number, since it uses as much as digits as its factorization.

232221005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46444206.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 232221005 is about 15238.7993293435. The cubic root of 232221005 is about 614.6584174038.

Adding to 232221005 its reverse (500122232), we get a palindrome (732343237).

The spelling of 232221005 in words is "two hundred thirty-two million, two hundred twenty-one thousand, five".