2124440251 has 2 divisors, whose sum is σ = 2124440252. Its totient is φ = 2124440250.

The previous prime is 2124440243. The next prime is 2124440257. The reversal of 2124440251 is 1520444212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2124440251 - 2³ = 2124440243 is a prime.

It is not a weakly prime, because it can be changed into another prime (2124440257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1062220125 + 1062220126.

It is an arithmetic number, because the mean of its divisors is an integer number (1062220126).

Almost surely, 2^2124440251 is an apocalyptic number.

2124440251 is a deficient number, since it is larger than the sum of its proper divisors (1).

2124440251 is an equidigital number, since it uses as much as digits as its factorization.

2124440251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2560, while the sum is 25.

The square root of 2124440251 is about 46091.6505562558. The cubic root of 2124440251 is about 1285.5279013141.

Adding to 2124440251 its reverse (1520444212), we get a palindrome (3644884463).

The spelling of 2124440251 in words is "two billion, one hundred twenty-four million, four hundred forty thousand, two hundred fifty-one".