112212101321 has 4 divisors (see below), whose sum is σ = 113031167892. Its totient is φ = 111393034752.

The previous prime is 112212101249. The next prime is 112212101333. The reversal of 112212101321 is 123101212211.

It is a happy number.

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 50838975625 + 61373125696 = 225475^2 + 247736^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-112212101321 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 112212101321.

It is not an unprimeable number, because it can be changed into a prime (112212101381) 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, 409533080 + ... + 409533353.

It is an arithmetic number, because the mean of its divisors is an integer number (28257791973).

Almost surely, 2^112212101321 is an apocalyptic number.

It is an amenable number.

112212101321 is a deficient number, since it is larger than the sum of its proper divisors (819066571).

112212101321 is an equidigital number, since it uses as much as digits as its factorization.

112212101321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 819066570.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 112212101321 its reverse (123101212211), we get a palindrome (235313313532).

The spelling of 112212101321 in words is "one hundred twelve billion, two hundred twelve million, one hundred one thousand, three hundred twenty-one".