1004401021100 has 18 divisors (see below), whose sum is σ = 2179550216004. Its totient is φ = 401760408400.

The previous prime is 1004401021093. The next prime is 1004401021111. The reversal of 1004401021100 is 11201044001.

It is a super-2 number, since 2×1004401021100² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5022005006 + ... + 5022005205.

Almost surely, 2^{1004401021100} is an apocalyptic number.

1004401021100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1004401021100 is an abundant number, since it is smaller than the sum of its proper divisors (1175149194904).

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

1004401021100 is a wasteful number, since it uses less digits than its factorization.

1004401021100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10044010225 (or 10044010218 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1004401021100 its reverse (11201044001), we get a palindrome (1015602065101).

The spelling of 1004401021100 in words is "one trillion, four billion, four hundred one million, twenty-one thousand, one hundred".