232220231 has 4 divisors (see below), whose sum is σ = 234614352. Its totient is φ = 229826112.

The previous prime is 232220207. The next prime is 232220257. The reversal of 232220231 is 132022232.

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

It is a cyclic number.

It is not a de Polignac number, because 232220231 - 2¹⁴ = 232203847 is a prime.

It is a super-2 number, since 2×232220231² = 107852471371386722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232220201) 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, 1196915 + ... + 1197108.

It is an arithmetic number, because the mean of its divisors is an integer number (58653588).

Almost surely, 2^232220231 is an apocalyptic number.

232220231 is a deficient number, since it is larger than the sum of its proper divisors (2394121).

232220231 is an equidigital number, since it uses as much as digits as its factorization.

232220231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2394120.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 232220231 is about 15238.7739336208. The cubic root of 232220231 is about 614.6577345111.

Adding to 232220231 its reverse (132022232), we get a palindrome (364242463).

The spelling of 232220231 in words is "two hundred thirty-two million, two hundred twenty thousand, two hundred thirty-one".