1224440134399 has 2 divisors, whose sum is σ = 1224440134400. Its totient is φ = 1224440134398.

The previous prime is 1224440134397. The next prime is 1224440134433. The reversal of 1224440134399 is 9934310444221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1224440134399 - 2¹ = 1224440134397 is a prime.

Together with 1224440134397, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1224440134397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 612220067199 + 612220067200.

It is an arithmetic number, because the mean of its divisors is an integer number (612220067200).

Almost surely, 2^{1224440134399} is an apocalyptic number.

1224440134399 is a deficient number, since it is larger than the sum of its proper divisors (1).

1224440134399 is an equidigital number, since it uses as much as digits as its factorization.

1224440134399 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 746496, while the sum is 46.

The spelling of 1224440134399 in words is "one trillion, two hundred twenty-four billion, four hundred forty million, one hundred thirty-four thousand, three hundred ninety-nine".