1200001204 has 12 divisors (see below), whose sum is σ = 2105403300. Its totient is φ = 598457408.

The previous prime is 1200001193. The next prime is 1200001247. The reversal of 1200001204 is 4021000021.

It can be written as a sum of positive squares in 2 ways, for example, as 526702500 + 673298704 = 22950^2 + 25948^2 .

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 384049 + ... + 387160.

It is an arithmetic number, because the mean of its divisors is an integer number (175450275).

Almost surely, 2^1200001204 is an apocalyptic number.

It is an amenable number.

1200001204 is a deficient number, since it is larger than the sum of its proper divisors (905402096).

1200001204 is a wasteful number, since it uses less digits than its factorization.

1200001204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 771602 (or 771600 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 1200001204 is about 34641.0335296163. The cubic root of 1200001204 is about 1062.6589245827.

Adding to 1200001204 its reverse (4021000021), we get a palindrome (5221001225).

The spelling of 1200001204 in words is "one billion, two hundred million, one thousand, two hundred four".