230232221 has 4 divisors (see below), whose sum is σ = 232384032. Its totient is φ = 228080412.

The previous prime is 230232203. The next prime is 230232229. The reversal of 230232221 is 122232032.

230232221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 230232221 - 2²⁶ = 163123357 is a prime.

It is a super-4 number, since 4×230232221⁴ (a number of 35 digits) contains 4444 as substring.

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 230232221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230232229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1075745 + ... + 1075958.

It is an arithmetic number, because the mean of its divisors is an integer number (58096008).

Almost surely, 2^230232221 is an apocalyptic number.

It is an amenable number.

230232221 is a deficient number, since it is larger than the sum of its proper divisors (2151811).

230232221 is a wasteful number, since it uses less digits than its factorization.

230232221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2151810.

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

The square root of 230232221 is about 15173.4050562160. The cubic root of 230232221 is about 612.8987011792.

Adding to 230232221 its reverse (122232032), we get a palindrome (352464253).

The spelling of 230232221 in words is "two hundred thirty million, two hundred thirty-two thousand, two hundred twenty-one".