112110021102221 has 4 divisors (see below), whose sum is σ = 112110173001372. Its totient is φ = 112109869203072.

The previous prime is 112110021102199. The next prime is 112110021102223. The reversal of 112110021102221 is 122201120011211.

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 54152084616100 + 57957936486121 = 7358810^2 + 7613011^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-112110021102221 is a prime.

It is a super-2 number, since 2×112110021102221² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 112110021102221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112110021102223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74837060 + ... + 76320413.

It is an arithmetic number, because the mean of its divisors is an integer number (28027543250343).

Almost surely, 2^{112110021102221} is an apocalyptic number.

It is an amenable number.

112110021102221 is a deficient number, since it is larger than the sum of its proper divisors (151899151).

112110021102221 is an equidigital number, since it uses as much as digits as its factorization.

112110021102221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151899150.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 112110021102221 its reverse (122201120011211), we get a palindrome (234311141113432).

The spelling of 112110021102221 in words is "one hundred twelve trillion, one hundred ten billion, twenty-one million, one hundred two thousand, two hundred twenty-one".