110200100200021 has 4 divisors (see below), whose sum is σ = 118677030984652. Its totient is φ = 101723169415392.

The previous prime is 110200100199989. The next prime is 110200100200097. The reversal of 110200100200021 is 120002001002011.

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 35539613403121 + 74660486796900 = 5961511^2 + 8640630^2 .

It is a cyclic number.

It is not a de Polignac number, because 110200100200021 - 2⁵ = 110200100199989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 110200100199980 and 110200100200007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110200100200621) 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, 4238465392296 + ... + 4238465392321.

It is an arithmetic number, because the mean of its divisors is an integer number (29669257746163).

Almost surely, 2^{110200100200021} is an apocalyptic number.

It is an amenable number.

110200100200021 is a deficient number, since it is larger than the sum of its proper divisors (8476930784631).

110200100200021 is an equidigital number, since it uses as much as digits as its factorization.

110200100200021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8476930784630.

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

Adding to 110200100200021 its reverse (120002001002011), we get a palindrome (230202101202032).

The spelling of 110200100200021 in words is "one hundred ten trillion, two hundred billion, one hundred million, two hundred thousand, twenty-one".