110212100111021 has 12 divisors (see below), whose sum is σ = 117423929750868. Its totient is φ = 103421234015232.

The previous prime is 110212100110979. The next prime is 110212100111093. The reversal of 110212100111021 is 120111001212011.

It can be written as a sum of positive squares in 6 ways, for example, as 276644440900 + 109935455670121 = 525970^2 + 10485011^2 .

It is not a de Polignac number, because 110212100111021 - 2¹⁴ = 110212100094637 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 110212100110987 and 110212100111005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110212100111621) 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 11 ways as a sum of consecutive naturals, for example, 565713806 + ... + 565908591.

It is an arithmetic number, because the mean of its divisors is an integer number (9785327479239).

Almost surely, 2^{110212100111021} is an apocalyptic number.

It is an amenable number.

110212100111021 is a deficient number, since it is larger than the sum of its proper divisors (7211829639847).

110212100111021 is a wasteful number, since it uses less digits than its factorization.

110212100111021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1131622768 (or 1131622751 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 110212100111021 its reverse (120111001212011), we get a palindrome (230323101323032).

The spelling of 110212100111021 in words is "one hundred ten trillion, two hundred twelve billion, one hundred million, one hundred eleven thousand, twenty-one".