10233221 has 2 divisors, whose sum is σ = 10233222. Its totient is φ = 10233220.

The previous prime is 10233217. The next prime is 10233239. The reversal of 10233221 is 12233201.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10176100 + 57121 = 3190^2 + 239^2 .

It is an emirp because it is prime and its reverse (12233201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10233221 - 2² = 10233217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10233196 and 10233205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10233241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5116610 + 5116611.

It is an arithmetic number, because the mean of its divisors is an integer number (5116611).

It is a self-describing number.

Almost surely, 2^10233221 is an apocalyptic number.

It is an amenable number.

10233221 is a deficient number, since it is larger than the sum of its proper divisors (1).

10233221 is an equidigital number, since it uses as much as digits as its factorization.

10233221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 10233221 is about 3198.9406058881. The cubic root of 10233221 is about 217.1054793821.

Adding to 10233221 its reverse (12233201), we get a palindrome (22466422).

The spelling of 10233221 in words is "ten million, two hundred thirty-three thousand, two hundred twenty-one".