112120210021 has 2 divisors, whose sum is σ = 112120210022. Its totient is φ = 112120210020.

The previous prime is 112120210009. The next prime is 112120210051. The reversal of 112120210021 is 120012021211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 71219596900 + 40900613121 = 266870^2 + 202239^2 .

It is a cyclic number.

It is not a de Polignac number, because 112120210021 - 2⁷ = 112120209893 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 112120209983 and 112120210010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (112120210051) 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 as a sum of consecutive naturals, namely, 56060105010 + 56060105011.

It is an arithmetic number, because the mean of its divisors is an integer number (56060105011).

Almost surely, 2^112120210021 is an apocalyptic number.

It is an amenable number.

112120210021 is a deficient number, since it is larger than the sum of its proper divisors (1).

112120210021 is an equidigital number, since it uses as much as digits as its factorization.

112120210021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 112120210021 its reverse (120012021211), we get a palindrome (232132231232).

The spelling of 112120210021 in words is "one hundred twelve billion, one hundred twenty million, two hundred ten thousand, twenty-one".