112012120122821 has 2 divisors, whose sum is σ = 112012120122822. Its totient is φ = 112012120122820.

The previous prime is 112012120122797. The next prime is 112012120122829. The reversal of 112012120122821 is 128221021210211.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 108018897249796 + 3993222873025 = 10393214^2 + 1998305^2 .

It is a cyclic number.

It is not a de Polignac number, because 112012120122821 - 2³⁰ = 112011046380997 is a prime.

It is a super-2 number, since 2×112012120122821² (a number of 29 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (112012120122829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56006060061410 + 56006060061411.

It is an arithmetic number, because the mean of its divisors is an integer number (56006060061411).

Almost surely, 2^{112012120122821} is an apocalyptic number.

It is an amenable number.

112012120122821 is a deficient number, since it is larger than the sum of its proper divisors (1).

112012120122821 is an equidigital number, since it uses as much as digits as its factorization.

112012120122821 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 512, while the sum is 26.

The spelling of 112012120122821 in words is "one hundred twelve trillion, twelve billion, one hundred twenty million, one hundred twenty-two thousand, eight hundred twenty-one".