112130122012021 has 4 divisors (see below), whose sum is σ = 115996677943500. Its totient is φ = 108263566080544.

The previous prime is 112130122011983. The next prime is 112130122012033. The reversal of 112130122012021 is 120210221031211.

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 72788437444996 + 39341684567025 = 8531614^2 + 6272295^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-112130122012021 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 112130122012021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112130122012421) 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, 1933277965696 + ... + 1933277965753.

It is an arithmetic number, because the mean of its divisors is an integer number (28999169485875).

Almost surely, 2^{112130122012021} is an apocalyptic number.

It is an amenable number.

112130122012021 is a deficient number, since it is larger than the sum of its proper divisors (3866555931479).

112130122012021 is an equidigital number, since it uses as much as digits as its factorization.

112130122012021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3866555931478.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 112130122012021 its reverse (120210221031211), we get a palindrome (232340343043232).

The spelling of 112130122012021 in words is "one hundred twelve trillion, one hundred thirty billion, one hundred twenty-two million, twelve thousand, twenty-one".