112002002221981 has 2 divisors, whose sum is σ = 112002002221982. Its totient is φ = 112002002221980.

The previous prime is 112002002221939. The next prime is 112002002222021. The reversal of 112002002221981 is 189122200200211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 84881967085881 + 27120035136100 = 9213141^2 + 5207690^2 .

It is a cyclic number.

It is not a de Polignac number, because 112002002221981 - 2⁹ = 112002002221469 is a prime.

It is a super-2 number, since 2×112002002221981² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (112002002621981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56001001110990 + 56001001110991.

It is an arithmetic number, because the mean of its divisors is an integer number (56001001110991).

Almost surely, 2^{112002002221981} is an apocalyptic number.

It is an amenable number.

112002002221981 is a deficient number, since it is larger than the sum of its proper divisors (1).

112002002221981 is an equidigital number, since it uses as much as digits as its factorization.

112002002221981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 31.

The spelling of 112002002221981 in words is "one hundred twelve trillion, two billion, two million, two hundred twenty-one thousand, nine hundred eighty-one".