12110101210981 has 2 divisors, whose sum is σ = 12110101210982. Its totient is φ = 12110101210980.

The previous prime is 12110101210957. The next prime is 12110101211041. The reversal of 12110101210981 is 18901210101121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9029970910081 + 3080130300900 = 3004991^2 + 1755030^2 .

It is a cyclic number.

It is not a de Polignac number, because 12110101210981 - 2¹³ = 12110101202789 is a prime.

It is a super-2 number, since 2×12110101210981² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12110101213981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6055050605490 + 6055050605491.

It is an arithmetic number, because the mean of its divisors is an integer number (6055050605491).

Almost surely, 2^{12110101210981} is an apocalyptic number.

It is an amenable number.

12110101210981 is a deficient number, since it is larger than the sum of its proper divisors (1).

12110101210981 is an equidigital number, since it uses as much as digits as its factorization.

12110101210981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 28.

The spelling of 12110101210981 in words is "twelve trillion, one hundred ten billion, one hundred one million, two hundred ten thousand, nine hundred eighty-one".