1100021204 has 24 divisors (see below), whose sum is σ = 1945944000. Its totient is φ = 544053056.

The previous prime is 1100021203. The next prime is 1100021233. The reversal of 1100021204 is 4021200011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100021203) 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, 365297 + ... + 368295.

It is an arithmetic number, because the mean of its divisors is an integer number (81081000).

Almost surely, 2^1100021204 is an apocalyptic number.

It is an amenable number.

1100021204 is a deficient number, since it is larger than the sum of its proper divisors (845922796).

1100021204 is a wasteful number, since it uses less digits than its factorization.

1100021204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3967 (or 3965 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 1100021204 is about 33166.5675643411. The cubic root of 1100021204 is about 1032.2867482827.

Adding to 1100021204 its reverse (4021200011), we get a palindrome (5121221215).

The spelling of 1100021204 in words is "one billion, one hundred million, twenty-one thousand, two hundred four".