230007221 has 4 divisors (see below), whose sum is σ = 230043552. Its totient is φ = 229970892.

The previous prime is 230007209. The next prime is 230007233. The reversal of 230007221 is 122700032.

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 an interprime number because it is at equal distance from previous prime (230007209) and next prime (230007233).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-230007221 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 230007221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230007241) 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, 5915 + ... + 22248.

It is an arithmetic number, because the mean of its divisors is an integer number (57510888).

Almost surely, 2^230007221 is an apocalyptic number.

It is an amenable number.

230007221 is a deficient number, since it is larger than the sum of its proper divisors (36331).

230007221 is an equidigital number, since it uses as much as digits as its factorization.

230007221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36330.

The product of its (nonzero) digits is 168, while the sum is 17.

The square root of 230007221 is about 15165.9889555545. The cubic root of 230007221 is about 612.6989794167.

Adding to 230007221 its reverse (122700032), we get a palindrome (352707253).

The spelling of 230007221 in words is "two hundred thirty million, seven thousand, two hundred twenty-one".