10221404 has 24 divisors (see below), whose sum is σ = 18363408. Its totient is φ = 4976640.

The previous prime is 10221397. The next prime is 10221443. The reversal of 10221404 is 40412201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39644 + ... + 39900.

It is an arithmetic number, because the mean of its divisors is an integer number (765142).

Almost surely, 2^10221404 is an apocalyptic number.

It is an amenable number.

10221404 is a deficient number, since it is larger than the sum of its proper divisors (8142004).

10221404 is a wasteful number, since it uses less digits than its factorization.

10221404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 485 (or 483 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 10221404 is about 3197.0930546357. The cubic root of 10221404 is about 217.0218783465.

Adding to 10221404 its reverse (40412201), we get a palindrome (50633605).

The spelling of 10221404 in words is "ten million, two hundred twenty-one thousand, four hundred four".