10845221 has 2 divisors, whose sum is σ = 10845222. Its totient is φ = 10845220.

The previous prime is 10845209. The next prime is 10845229. The reversal of 10845221 is 12254801.

10845221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6964321 + 3880900 = 2639^2 + 1970^2 .

It is a cyclic number.

It is not a de Polignac number, because 10845221 - 2⁶ = 10845157 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10845229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5422610 + 5422611.

It is an arithmetic number, because the mean of its divisors is an integer number (5422611).

Almost surely, 2^10845221 is an apocalyptic number.

It is an amenable number.

10845221 is a deficient number, since it is larger than the sum of its proper divisors (1).

10845221 is an equidigital number, since it uses as much as digits as its factorization.

10845221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 640, while the sum is 23.

The square root of 10845221 is about 3293.2083140913. The cubic root of 10845221 is about 221.3499706752.

The spelling of 10845221 in words is "ten million, eight hundred forty-five thousand, two hundred twenty-one".