2124440191 has 2 divisors, whose sum is σ = 2124440192. Its totient is φ = 2124440190.

The previous prime is 2124440147. The next prime is 2124440239. The reversal of 2124440191 is 1910444212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2124440191 - 2⁹ = 2124439679 is a prime.

It is a super-2 number, since 2×2124440191² = 9026492250272232962, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2124450191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1062220095 + 1062220096.

It is an arithmetic number, because the mean of its divisors is an integer number (1062220096).

Almost surely, 2^2124440191 is an apocalyptic number.

2124440191 is a deficient number, since it is larger than the sum of its proper divisors (1).

2124440191 is an equidigital number, since it uses as much as digits as its factorization.

2124440191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 2124440191 is about 46091.6499053787. The cubic root of 2124440191 is about 1285.5278892119.

The spelling of 2124440191 in words is "two billion, one hundred twenty-four million, four hundred forty thousand, one hundred ninety-one".