12231202111081 has 2 divisors, whose sum is σ = 12231202111082. Its totient is φ = 12231202111080.

The previous prime is 12231202110991. The next prime is 12231202111187. The reversal of 12231202111081 is 18011120213221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9739492505856 + 2491709605225 = 3120816^2 + 1578515^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12231202111081 is a prime.

It is a super-3 number, since 3×12231202111081³ (a number of 40 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (12231202121081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6115601055540 + 6115601055541.

It is an arithmetic number, because the mean of its divisors is an integer number (6115601055541).

Almost surely, 2^{12231202111081} is an apocalyptic number.

It is an amenable number.

12231202111081 is a deficient number, since it is larger than the sum of its proper divisors (1).

12231202111081 is an equidigital number, since it uses as much as digits as its factorization.

12231202111081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 25.

The spelling of 12231202111081 in words is "twelve trillion, two hundred thirty-one billion, two hundred two million, one hundred eleven thousand, eighty-one".