100110011200021 has 4 divisors (see below), whose sum is σ = 100332973363500. Its totient is φ = 99887049036544.

The previous prime is 100110011200009. The next prime is 100110011200027. The reversal of 100110011200021 is 120002110011001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 41743681074225 + 58366330125796 = 6460935^2 + 7639786^2 .

It is a cyclic number.

It is not a de Polignac number, because 100110011200021 - 2⁴³ = 91313918177813 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100110011199980 and 100110011200007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100110011200027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111481081066 + ... + 111481081963.

It is an arithmetic number, because the mean of its divisors is an integer number (25083243340875).

Almost surely, 2^{100110011200021} is an apocalyptic number.

It is an amenable number.

100110011200021 is a deficient number, since it is larger than the sum of its proper divisors (222962163479).

100110011200021 is an equidigital number, since it uses as much as digits as its factorization.

100110011200021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222962163478.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 100110011200021 its reverse (120002110011001), we get a palindrome (220112121211022).

It can be divided in two parts, 10011001 and 1200021, that multiplied together give a palindrome (12013411431021).

The spelling of 100110011200021 in words is "one hundred trillion, one hundred ten billion, eleven million, two hundred thousand, twenty-one".