112121221873 has 2 divisors, whose sum is σ = 112121221874. Its totient is φ = 112121221872.

The previous prime is 112121221853. The next prime is 112121221889. The reversal of 112121221873 is 378122121211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 68637712144 + 43483509729 = 261988^2 + 208527^2 .

It is a cyclic number.

It is not a de Polignac number, because 112121221873 - 2²⁹ = 111584350961 is a prime.

It is not a weakly prime, because it can be changed into another prime (112121221853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56060610936 + 56060610937.

It is an arithmetic number, because the mean of its divisors is an integer number (56060610937).

Almost surely, 2^112121221873 is an apocalyptic number.

It is an amenable number.

112121221873 is a deficient number, since it is larger than the sum of its proper divisors (1).

112121221873 is an equidigital number, since it uses as much as digits as its factorization.

112121221873 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2688, while the sum is 31.

The spelling of 112121221873 in words is "one hundred twelve billion, one hundred twenty-one million, two hundred twenty-one thousand, eight hundred seventy-three".