112111002221021 has 8 divisors (see below), whose sum is σ = 112319949120984. Its totient is φ = 111902061660480.

The previous prime is 112111002221011. The next prime is 112111002221041. The reversal of 112111002221021 is 120122200111211.

It can be written as a sum of positive squares in 4 ways, for example, as 267898372921 + 111843103848100 = 517589^2 + 10575590^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 112111002221021 - 2⁶ = 112111002220957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112111002221011) 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 7 ways as a sum of consecutive naturals, for example, 34585991 + ... + 37688363.

It is an arithmetic number, because the mean of its divisors is an integer number (14039993640123).

Almost surely, 2^{112111002221021} is an apocalyptic number.

It is an amenable number.

112111002221021 is a deficient number, since it is larger than the sum of its proper divisors (208946899963).

112111002221021 is an equidigital number, since it uses as much as digits as its factorization.

112111002221021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3169711.

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

Adding to 112111002221021 its reverse (120122200111211), we get a palindrome (232233202332232).

The spelling of 112111002221021 in words is "one hundred twelve trillion, one hundred eleven billion, two million, two hundred twenty-one thousand, twenty-one".