230040221 has 2 divisors, whose sum is σ = 230040222. Its totient is φ = 230040220.

The previous prime is 230040199. The next prime is 230040241. The reversal of 230040221 is 122040032.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 143736121 + 86304100 = 11989^2 + 9290^2 .

It is a cyclic number.

It is not a de Polignac number, because 230040221 - 2¹⁴ = 230023837 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 230040196 and 230040205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (230040241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115020110 + 115020111.

It is an arithmetic number, because the mean of its divisors is an integer number (115020111).

Almost surely, 2^230040221 is an apocalyptic number.

It is an amenable number.

230040221 is a deficient number, since it is larger than the sum of its proper divisors (1).

230040221 is an equidigital number, since it uses as much as digits as its factorization.

230040221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 230040221 is about 15167.0768772364. The cubic root of 230040221 is about 612.7282800901.

Adding to 230040221 its reverse (122040032), we get a palindrome (352080253).

The spelling of 230040221 in words is "two hundred thirty million, forty thousand, two hundred twenty-one".