2144122111 has 2 divisors, whose sum is σ = 2144122112. Its totient is φ = 2144122110.

The previous prime is 2144122103. The next prime is 2144122147. The reversal of 2144122111 is 1112214412.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2144122111 - 2³ = 2144122103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2144129111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1072061055 + 1072061056.

It is an arithmetic number, because the mean of its divisors is an integer number (1072061056).

Almost surely, 2^2144122111 is an apocalyptic number.

2144122111 is a deficient number, since it is larger than the sum of its proper divisors (1).

2144122111 is an equidigital number, since it uses as much as digits as its factorization.

2144122111 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 128, while the sum is 19.

The square root of 2144122111 is about 46304.6661903528. Note that the first 3 decimals coincide. The cubic root of 2144122111 is about 1289.4856253042.

Adding to 2144122111 its reverse (1112214412), we get a palindrome (3256336523).

The spelling of 2144122111 in words is "two billion, one hundred forty-four million, one hundred twenty-two thousand, one hundred eleven".