12112022222081 has 2 divisors, whose sum is σ = 12112022222082. Its totient is φ = 12112022222080.

The previous prime is 12112022221969. The next prime is 12112022222107. The reversal of 12112022222081 is 18022222021121.

It is an a-pointer prime, because the next prime (12112022222107) can be obtained adding 12112022222081 to its sum of digits (26).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11652664960000 + 459357262081 = 3413600^2 + 677759^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12112022222081 is a prime.

It is a super-2 number, since 2×12112022222081² (a number of 27 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12112022222081.

It is not a weakly prime, because it can be changed into another prime (12112022222581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6056011111040 + 6056011111041.

It is an arithmetic number, because the mean of its divisors is an integer number (6056011111041).

Almost surely, 2^{12112022222081} is an apocalyptic number.

It is an amenable number.

12112022222081 is a deficient number, since it is larger than the sum of its proper divisors (1).

12112022222081 is an equidigital number, since it uses as much as digits as its factorization.

12112022222081 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 26.

The spelling of 12112022222081 in words is "twelve trillion, one hundred twelve billion, twenty-two million, two hundred twenty-two thousand, eighty-one".