10604221 has 2 divisors, whose sum is σ = 10604222. Its totient is φ = 10604220.

The previous prime is 10604213. The next prime is 10604233. The reversal of 10604221 is 12240601.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8008900 + 2595321 = 2830^2 + 1611^2 .

It is an emirp because it is prime and its reverse (12240601) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10604221 - 2³ = 10604213 is a prime.

It is a super-2 number, since 2×10604221² = 224899006033682, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10604195 and 10604204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10604921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5302110 + 5302111.

It is an arithmetic number, because the mean of its divisors is an integer number (5302111).

Almost surely, 2^10604221 is an apocalyptic number.

It is an amenable number.

10604221 is a deficient number, since it is larger than the sum of its proper divisors (1).

10604221 is an equidigital number, since it uses as much as digits as its factorization.

10604221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 10604221 is about 3256.4122896218. The cubic root of 10604221 is about 219.6980775744.

Adding to 10604221 its reverse (12240601), we get a palindrome (22844822).

The spelling of 10604221 in words is "ten million, six hundred four thousand, two hundred twenty-one".