110002110100021 has 4 divisors (see below), whose sum is σ = 110609856564844. Its totient is φ = 109394363635200.

The previous prime is 110002110099971. The next prime is 110002110100061. The reversal of 110002110100021 is 120001011200011.

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 1715088828996 + 108287021271025 = 1309614^2 + 10406105^2 .

It is a cyclic number.

It is not a de Polignac number, because 110002110100021 - 2¹⁵ = 110002110067253 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 110002110099980 and 110002110100007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110002110100061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 303873232140 + ... + 303873232501.

It is an arithmetic number, because the mean of its divisors is an integer number (27652464141211).

Almost surely, 2^{110002110100021} is an apocalyptic number.

It is an amenable number.

110002110100021 is a deficient number, since it is larger than the sum of its proper divisors (607746464823).

110002110100021 is an equidigital number, since it uses as much as digits as its factorization.

110002110100021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 607746464822.

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

Adding to 110002110100021 its reverse (120001011200011), we get a palindrome (230003121300032).

The spelling of 110002110100021 in words is "one hundred ten trillion, two billion, one hundred ten million, one hundred thousand, twenty-one".