112002101201981 has 2 divisors, whose sum is σ = 112002101201982. Its totient is φ = 112002101201980.

The previous prime is 112002101201971. The next prime is 112002101202037. The reversal of 112002101201981 is 189102101200211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 75741338702500 + 36260762499481 = 8702950^2 + 6021691^2 .

It is an emirp because it is prime and its reverse (189102101200211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 112002101201981 - 2¹⁸ = 112002100939837 is a prime.

It is a super-2 number, since 2×112002101201981² (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 (112002101201911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56001050600990 + 56001050600991.

It is an arithmetic number, because the mean of its divisors is an integer number (56001050600991).

Almost surely, 2^{112002101201981} is an apocalyptic number.

It is an amenable number.

112002101201981 is a deficient number, since it is larger than the sum of its proper divisors (1).

112002101201981 is an equidigital number, since it uses as much as digits as its factorization.

112002101201981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 29.

The spelling of 112002101201981 in words is "one hundred twelve trillion, two billion, one hundred one million, two hundred one thousand, nine hundred eighty-one".