12210011212081 has 2 divisors, whose sum is σ = 12210011212082. Its totient is φ = 12210011212080.

The previous prime is 12210011211949. The next prime is 12210011212093. The reversal of 12210011212081 is 18021211001221.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9612579373056 + 2597431839025 = 3100416^2 + 1611655^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12210011212081 is a prime.

It is a super-2 number, since 2×12210011212081² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12210011212481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6105005606040 + 6105005606041.

It is an arithmetic number, because the mean of its divisors is an integer number (6105005606041).

Almost surely, 2^{12210011212081} is an apocalyptic number.

It is an amenable number.

12210011212081 is a deficient number, since it is larger than the sum of its proper divisors (1).

12210011212081 is an equidigital number, since it uses as much as digits as its factorization.

12210011212081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 128, while the sum is 22.

The spelling of 12210011212081 in words is "twelve trillion, two hundred ten billion, eleven million, two hundred twelve thousand, eighty-one".