12111222211141 has 2 divisors, whose sum is σ = 12111222211142. Its totient is φ = 12111222211140.

The previous prime is 12111222211091. The next prime is 12111222211271. The reversal of 12111222211141 is 14111222211121.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7276214922916 + 4835007288225 = 2697446^2 + 2198865^2 .

It is a cyclic number.

It is not a de Polignac number, because 12111222211141 - 2³⁷ = 11973783257669 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12111222214141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6055611105570 + 6055611105571.

It is an arithmetic number, because the mean of its divisors is an integer number (6055611105571).

Almost surely, 2^{12111222211141} is an apocalyptic number.

It is an amenable number.

12111222211141 is a deficient number, since it is larger than the sum of its proper divisors (1).

12111222211141 is an equidigital number, since it uses as much as digits as its factorization.

12111222211141 is an evil number, because the sum of its binary digits is even.

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

Adding to 12111222211141 its reverse (14111222211121), we get a palindrome (26222444422262).

The spelling of 12111222211141 in words is "twelve trillion, one hundred eleven billion, two hundred twenty-two million, two hundred eleven thousand, one hundred forty-one".