103332221 has 2 divisors, whose sum is σ = 103332222. Its totient is φ = 103332220.

The previous prime is 103332217. The next prime is 103332227. The reversal of 103332221 is 122233301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 102799321 + 532900 = 10139^2 + 730^2 .

It is a cyclic number.

It is not a de Polignac number, because 103332221 - 2² = 103332217 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 103332221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (103332227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51666110 + 51666111.

It is an arithmetic number, because the mean of its divisors is an integer number (51666111).

Almost surely, 2^103332221 is an apocalyptic number.

It is an amenable number.

103332221 is a deficient number, since it is larger than the sum of its proper divisors (1).

103332221 is an equidigital number, since it uses as much as digits as its factorization.

103332221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 103332221 is about 10165.2457422337. The cubic root of 103332221 is about 469.2582550876.

Adding to 103332221 its reverse (122233301), we get a palindrome (225565522).

The spelling of 103332221 in words is "one hundred three million, three hundred thirty-two thousand, two hundred twenty-one".