2144122081 has 2 divisors, whose sum is σ = 2144122082. Its totient is φ = 2144122080.

The previous prime is 2144122067. The next prime is 2144122103. The reversal of 2144122081 is 1802214412.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2017447056 + 126675025 = 44916^2 + 11255^2 .

It is a cyclic number.

It is not a de Polignac number, because 2144122081 - 2⁷ = 2144121953 is a prime.

It is a super-2 number, since 2×2144122081² = 9194518996463541122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2144120081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1072061040 + 1072061041.

It is an arithmetic number, because the mean of its divisors is an integer number (1072061041).

Almost surely, 2^2144122081 is an apocalyptic number.

It is an amenable number.

2144122081 is a deficient number, since it is larger than the sum of its proper divisors (1).

2144122081 is an equidigital number, since it uses as much as digits as its factorization.

2144122081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1024, while the sum is 25.

The square root of 2144122081 is about 46304.6658664113. The cubic root of 2144122081 is about 1289.4856192902.

Adding to 2144122081 its reverse (1802214412), we get a palindrome (3946336493).

The spelling of 2144122081 in words is "two billion, one hundred forty-four million, one hundred twenty-two thousand, eighty-one".