11204421 has 8 divisors (see below), whose sum is σ = 14958720. Its totient is φ = 7459872.

The previous prime is 11204407. The next prime is 11204449. The reversal of 11204421 is 12440211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11204421 - 2⁷ = 11204293 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11204421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11204621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 900 + ... + 4818.

It is an arithmetic number, because the mean of its divisors is an integer number (1869840).

Almost surely, 2^11204421 is an apocalyptic number.

It is an amenable number.

11204421 is a deficient number, since it is larger than the sum of its proper divisors (3754299).

11204421 is an equidigital number, since it uses as much as digits as its factorization.

11204421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4875.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 11204421 is about 3347.3005541779. The cubic root of 11204421 is about 223.7672233759.

Adding to 11204421 its reverse (12440211), we get a palindrome (23644632).

The spelling of 11204421 in words is "eleven million, two hundred four thousand, four hundred twenty-one".