112011221222281 has 2 divisors, whose sum is σ = 112011221222282. Its totient is φ = 112011221222280.

The previous prime is 112011221222279. The next prime is 112011221222429. The reversal of 112011221222281 is 182222122110211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 110462391191881 + 1548830030400 = 10510109^2 + 1244520^2 .

It is an emirp because it is prime and its reverse (182222122110211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 112011221222281 - 2¹ = 112011221222279 is a prime.

It is a super-2 number, since 2×112011221222281² (a number of 29 digits) contains 22 as substring.

Together with 112011221222279, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (112011221222081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56005610611140 + 56005610611141.

It is an arithmetic number, because the mean of its divisors is an integer number (56005610611141).

Almost surely, 2^{112011221222281} is an apocalyptic number.

It is an amenable number.

112011221222281 is a deficient number, since it is larger than the sum of its proper divisors (1).

112011221222281 is an equidigital number, since it uses as much as digits as its factorization.

112011221222281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1024, while the sum is 28.

Adding to 112011221222281 its reverse (182222122110211), we get a palindrome (294233343332492).

The spelling of 112011221222281 in words is "one hundred twelve trillion, eleven billion, two hundred twenty-one million, two hundred twenty-two thousand, two hundred eighty-one".