1224205044779 has 4 divisors (see below), whose sum is σ = 1224221130000. Its totient is φ = 1224188959560.

The previous prime is 1224205044767. The next prime is 1224205044781. The reversal of 1224205044779 is 9774405024221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1224205044779 - 2⁸ = 1224205044523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1224205044709) 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 in 3 ways as a sum of consecutive naturals, for example, 7927904 + ... + 8080845.

It is an arithmetic number, because the mean of its divisors is an integer number (306055282500).

Almost surely, 2^{1224205044779} is an apocalyptic number.

1224205044779 is a deficient number, since it is larger than the sum of its proper divisors (16085221).

1224205044779 is an equidigital number, since it uses as much as digits as its factorization.

1224205044779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16085220.

The product of its (nonzero) digits is 1128960, while the sum is 47.

The spelling of 1224205044779 in words is "one trillion, two hundred twenty-four billion, two hundred five million, forty-four thousand, seven hundred seventy-nine".