10221604 has 12 divisors (see below), whose sum is σ = 18065628. Its totient is φ = 5060000.

The previous prime is 10221571. The next prime is 10221619. The reversal of 10221604 is 40612201.

10221604 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 8526400 + 1695204 = 2920^2 + 1302^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12247 + ... + 13054.

It is an arithmetic number, because the mean of its divisors is an integer number (1505469).

Almost surely, 2^10221604 is an apocalyptic number.

It is an amenable number.

10221604 is a deficient number, since it is larger than the sum of its proper divisors (7844024).

10221604 is a wasteful number, since it uses less digits than its factorization.

10221604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25406 (or 25404 counting only the distinct ones).

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

The square root of 10221604 is about 3197.1243328967. The cubic root of 10221604 is about 217.0232938107.

Adding to 10221604 its reverse (40612201), we get a palindrome (50833805).

The spelling of 10221604 in words is "ten million, two hundred twenty-one thousand, six hundred four".