100200100021 has 8 divisors (see below), whose sum is σ = 118208413184. Its totient is φ = 83115290160.

The previous prime is 100200100019. The next prime is 100200100067. The reversal of 100200100021 is 120001002001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 100200100021 - 2¹ = 100200100019 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (7).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100200099977 and 100200100013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100200106021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 230875590 + ... + 230876023.

It is an arithmetic number, because the mean of its divisors is an integer number (14776051648).

Almost surely, 2^100200100021 is an apocalyptic number.

It is an amenable number.

100200100021 is a deficient number, since it is larger than the sum of its proper divisors (18008313163).

100200100021 is an equidigital number, since it uses as much as digits as its factorization.

100200100021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 461751651.

The product of its (nonzero) digits is 4, while the sum is 7.

Adding to 100200100021 its reverse (120001002001), we get a palindrome (220201102022).

The spelling of 100200100021 in words is "one hundred billion, two hundred million, one hundred thousand, twenty-one".