110112101212021 has 4 divisors (see below), whose sum is σ = 110128863602700. Its totient is φ = 110095338821344.

The previous prime is 110112101211989. The next prime is 110112101212033. The reversal of 110112101212021 is 120212101211011.

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 106353039443121 + 3759061768900 = 10312761^2 + 1938830^2 .

It is a cyclic number.

It is not a de Polignac number, because 110112101212021 - 2⁵ = 110112101211989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 110112101211986 and 110112101212004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110112101212121) 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, 8381185486 + ... + 8381198623.

It is an arithmetic number, because the mean of its divisors is an integer number (27532215900675).

Almost surely, 2^{110112101212021} is an apocalyptic number.

It is an amenable number.

110112101212021 is a deficient number, since it is larger than the sum of its proper divisors (16762390679).

110112101212021 is an equidigital number, since it uses as much as digits as its factorization.

110112101212021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16762390678.

The product of its (nonzero) digits is 16, while the sum is 16.

Adding to 110112101212021 its reverse (120212101211011), we get a palindrome (230324202423032).

The spelling of 110112101212021 in words is "one hundred ten trillion, one hundred twelve billion, one hundred one million, two hundred twelve thousand, twenty-one".