11121204 has 12 divisors (see below), whose sum is σ = 25949504. Its totient is φ = 3707064.

The previous prime is 11121197. The next prime is 11121217. The reversal of 11121204 is 40212111.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Harshad number since it is a multiple of its sum of digits (12), and also a Moran number because the ratio is a prime number: 926767 = 11121204 / (1 + 1 + 1 + 2 + 1 + 2 + 0 + 4).

It is a self number, because there is not a number n which added to its sum of digits gives 11121204.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 463372 + ... + 463395.

Almost surely, 2^11121204 is an apocalyptic number.

It is an amenable number.

11121204 is an abundant number, since it is smaller than the sum of its proper divisors (14828300).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11121204 is a wasteful number, since it uses less digits than its factorization.

11121204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 926774 (or 926772 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 11121204 is about 3334.8469230236. The cubic root of 11121204 is about 223.2118613704.

Adding to 11121204 its reverse (40212111), we get a palindrome (51333315).

It can be divided in two parts, 11121 and 204, that added together give a triangular number (11325 = T₁₅₀).

The spelling of 11121204 in words is "eleven million, one hundred twenty-one thousand, two hundred four".