112101221021 has 8 divisors (see below), whose sum is σ = 113173123800. Its totient is φ = 111030108480.

The previous prime is 112101221017. The next prime is 112101221033. The reversal of 112101221021 is 120122101211.

It can be written as a sum of positive squares in 4 ways, for example, as 78935712025 + 33165508996 = 280955^2 + 182114^2 .

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 112101221021 - 2² = 112101221017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 112101220987 and 112101221005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112101221521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89495 + ... + 481883.

It is an arithmetic number, because the mean of its divisors is an integer number (14146640475).

Almost surely, 2^112101221021 is an apocalyptic number.

It is an amenable number.

112101221021 is a deficient number, since it is larger than the sum of its proper divisors (1071902779).

112101221021 is a wasteful number, since it uses less digits than its factorization.

112101221021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395119.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 112101221021 its reverse (120122101211), we get a palindrome (232223322232).

The spelling of 112101221021 in words is "one hundred twelve billion, one hundred one million, two hundred twenty-one thousand, twenty-one".