230670221 has 2 divisors, whose sum is σ = 230670222. Its totient is φ = 230670220.

The previous prime is 230670211. The next prime is 230670239. The reversal of 230670221 is 122076032.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 203775625 + 26894596 = 14275^2 + 5186^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-230670221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (230670211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115335110 + 115335111.

It is an arithmetic number, because the mean of its divisors is an integer number (115335111).

Almost surely, 2^230670221 is an apocalyptic number.

It is an amenable number.

230670221 is a deficient number, since it is larger than the sum of its proper divisors (1).

230670221 is an equidigital number, since it uses as much as digits as its factorization.

230670221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 230670221 is about 15187.8313461797. The cubic root of 230670221 is about 613.2871199887.

It can be divided in two parts, 2306 and 70221, that added together give a palindrome (72527).

The spelling of 230670221 in words is "two hundred thirty million, six hundred seventy thousand, two hundred twenty-one".