112217671376981 has 2 divisors, whose sum is σ = 112217671376982. Its totient is φ = 112217671376980.

The previous prime is 112217671376963. The next prime is 112217671377017. The reversal of 112217671376981 is 189673176712211.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 70930235596081 + 41287435780900 = 8422009^2 + 6425530^2 .

It is a cyclic number.

It is not a de Polignac number, because 112217671376981 - 2²⁶ = 112217604268117 is a prime.

It is a super-2 number, since 2×112217671376981² (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 (112217671376911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56108835688490 + 56108835688491.

It is an arithmetic number, because the mean of its divisors is an integer number (56108835688491).

Almost surely, 2^{112217671376981} is an apocalyptic number.

It is an amenable number.

112217671376981 is a deficient number, since it is larger than the sum of its proper divisors (1).

112217671376981 is an equidigital number, since it uses as much as digits as its factorization.

112217671376981 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10668672, while the sum is 62.

The spelling of 112217671376981 in words is "one hundred twelve trillion, two hundred seventeen billion, six hundred seventy-one million, three hundred seventy-six thousand, nine hundred eighty-one".