12112220001121 has 2 divisors, whose sum is σ = 12112220001122. Its totient is φ = 12112220001120.

The previous prime is 12112220001083. The next prime is 12112220001131. The reversal of 12112220001121 is 12110002221121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9921334534225 + 2190885466896 = 3149815^2 + 1480164^2 .

It is a cyclic number.

It is not a de Polignac number, because 12112220001121 - 2²¹ = 12112217903969 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12112220001095 and 12112220001104.

It is not a weakly prime, because it can be changed into another prime (12112220001131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6056110000560 + 6056110000561.

It is an arithmetic number, because the mean of its divisors is an integer number (6056110000561).

Almost surely, 2^{12112220001121} is an apocalyptic number.

It is an amenable number.

12112220001121 is a deficient number, since it is larger than the sum of its proper divisors (1).

12112220001121 is an equidigital number, since it uses as much as digits as its factorization.

12112220001121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 12112220001121 its reverse (12110002221121), we get a palindrome (24222222222242).

The spelling of 12112220001121 in words is "twelve trillion, one hundred twelve billion, two hundred twenty million, one thousand, one hundred twenty-one".