10193221 has 2 divisors, whose sum is σ = 10193222. Its totient is φ = 10193220.

The previous prime is 10193207. The next prime is 10193231. The reversal of 10193221 is 12239101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8122500 + 2070721 = 2850^2 + 1439^2 .

It is a cyclic number.

It is not a de Polignac number, because 10193221 - 2¹⁵ = 10160453 is a prime.

It is a nialpdrome in base 15.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10193231) 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, 5096610 + 5096611.

It is an arithmetic number, because the mean of its divisors is an integer number (5096611).

Almost surely, 2^10193221 is an apocalyptic number.

It is an amenable number.

10193221 is a deficient number, since it is larger than the sum of its proper divisors (1).

10193221 is an equidigital number, since it uses as much as digits as its factorization.

10193221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 10193221 is about 3192.6824145223. The cubic root of 10193221 is about 216.8222333126.

The spelling of 10193221 in words is "ten million, one hundred ninety-three thousand, two hundred twenty-one".