2004221100 has 72 divisors (see below), whose sum is σ = 6627298048. Its totient is φ = 458107200.

The previous prime is 2004221077. The next prime is 2004221101. The reversal of 2004221100 is 11224002.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (2004221101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 475096 + ... + 479295.

Almost surely, 2^2004221100 is an apocalyptic number.

2004221100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2004221100 is an abundant number, since it is smaller than the sum of its proper divisors (4623076948).

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

2004221100 is a wasteful number, since it uses less digits than its factorization.

2004221100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 954415 (or 954408 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 2004221100 is about 44768.5280079656. The cubic root of 2004221100 is about 1260.8068025024.

Adding to 2004221100 its reverse (11224002), we get a palindrome (2015445102).

The spelling of 2004221100 in words is "two billion, four million, two hundred twenty-one thousand, one hundred".