1112421204 has 18 divisors (see below), whose sum is σ = 2811953690. Its totient is φ = 370807056.

The previous prime is 1112421181. The next prime is 1112421209. The reversal of 1112421204 is 4021242111.

It can be written as a sum of positive squares in only one way, i.e., 685916100 + 426505104 = 26190^2 + 20652^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1112421209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15450259 + ... + 15450330.

Almost surely, 2^1112421204 is an apocalyptic number.

It is an amenable number.

1112421204 is an abundant number, since it is smaller than the sum of its proper divisors (1699532486).

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

1112421204 is a wasteful number, since it uses less digits than its factorization.

1112421204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30900599 (or 30900594 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 1112421204 is about 33352.9789374203. The cubic root of 1112421204 is about 1036.1510850847.

Adding to 1112421204 its reverse (4021242111), we get a palindrome (5133663315).

The spelling of 1112421204 in words is "one billion, one hundred twelve million, four hundred twenty-one thousand, two hundred four".