112221015916897 has 2 divisors, whose sum is σ = 112221015916898. Its totient is φ = 112221015916896.

The previous prime is 112221015916883. The next prime is 112221015916901. The reversal of 112221015916897 is 798619510122211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 86532580639521 + 25688435277376 = 9302289^2 + 5068376^2 .

It is a cyclic number.

It is not a de Polignac number, because 112221015916897 - 2³¹ = 112218868433249 is a prime.

It is a super-2 number, since 2×112221015916897² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (112221015916837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56110507958448 + 56110507958449.

It is an arithmetic number, because the mean of its divisors is an integer number (56110507958449).

Almost surely, 2^{112221015916897} is an apocalyptic number.

It is an amenable number.

112221015916897 is a deficient number, since it is larger than the sum of its proper divisors (1).

112221015916897 is an equidigital number, since it uses as much as digits as its factorization.

112221015916897 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1088640, while the sum is 55.

The spelling of 112221015916897 in words is "one hundred twelve trillion, two hundred twenty-one billion, fifteen million, nine hundred sixteen thousand, eight hundred ninety-seven".