10232221 has 2 divisors, whose sum is σ = 10232222. Its totient is φ = 10232220.

The previous prime is 10232219. The next prime is 10232227. The reversal of 10232221 is 12223201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10169721 + 62500 = 3189^2 + 250^2 .

It is a cyclic number.

It is not a de Polignac number, because 10232221 - 2¹ = 10232219 is a prime.

Together with 10232219, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10232227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5116110 + 5116111.

It is an arithmetic number, because the mean of its divisors is an integer number (5116111).

Almost surely, 2^10232221 is an apocalyptic number.

It is an amenable number.

10232221 is a deficient number, since it is larger than the sum of its proper divisors (1).

10232221 is an equidigital number, since it uses as much as digits as its factorization.

10232221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 10232221 is about 3198.7843003241. The cubic root of 10232221 is about 217.0984072343.

Adding to 10232221 its reverse (12223201), we get a palindrome (22455422).

It can be divided in two parts, 102 and 32221, that added together give a palindrome (32323).

The spelling of 10232221 in words is "ten million, two hundred thirty-two thousand, two hundred twenty-one".