100021021120 has 28 divisors (see below), whose sum is σ = 238175057304. Its totient is φ = 40008408320.

The previous prime is 100021021099. The next prime is 100021021147. The reversal of 100021021120 is 21120120001.

100021021120 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 100021021097 and 100021021106.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 156282526 + ... + 156283165.

Almost surely, 2^100021021120 is an apocalyptic number.

100021021120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100021021120 is an abundant number, since it is smaller than the sum of its proper divisors (138154036184).

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

100021021120 is an equidigital number, since it uses as much as digits as its factorization.

100021021120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312565708 (or 312565698 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 100021021120 its reverse (21120120001), we get a palindrome (121141141121).

The spelling of 100021021120 in words is "one hundred billion, twenty-one million, twenty-one thousand, one hundred twenty".