100020044004020 has 48 divisors (see below), whose sum is σ = 243086689251840. Its totient is φ = 33858503138304.

The previous prime is 100020044004007. The next prime is 100020044004073. The reversal of 100020044004020 is 20400440020001.

It is a self number, because there is not a number n which added to its sum of digits gives 100020044004020.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4521690749 + ... + 4521712868.

It is an arithmetic number, because the mean of its divisors is an integer number (5064306026080).

Almost surely, 2^{100020044004020} is an apocalyptic number.

100020044004020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100020044004020 is an abundant number, since it is smaller than the sum of its proper divisors (143066645247820).

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

100020044004020 is a wasteful number, since it uses less digits than its factorization.

100020044004020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9043403712 (or 9043403710 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

Adding to 100020044004020 its reverse (20400440020001), we get a palindrome (120420484024021).

The spelling of 100020044004020 in words is "one hundred trillion, twenty billion, forty-four million, four thousand, twenty".