1224268723841 has 4 divisors (see below), whose sum is σ = 1224271738452. Its totient is φ = 1224265709232.

The previous prime is 1224268723831. The next prime is 1224268723861. The reversal of 1224268723841 is 1483278624221.

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

It can be written as a sum of positive squares in 2 ways, for example, as 580910730625 + 643357993216 = 762175^2 + 802096^2 .

It is a cyclic number.

It is not a de Polignac number, because 1224268723841 - 2¹⁸ = 1224268461697 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1224268723841.

It is not an unprimeable number, because it can be changed into a prime (1224268723831) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 781706 + ... + 1749171.

It is an arithmetic number, because the mean of its divisors is an integer number (306067934613).

Almost surely, 2^{1224268723841} is an apocalyptic number.

It is an amenable number.

1224268723841 is a deficient number, since it is larger than the sum of its proper divisors (3014611).

1224268723841 is an equidigital number, since it uses as much as digits as its factorization.

1224268723841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3014610.

The product of its digits is 2064384, while the sum is 50.

The spelling of 1224268723841 in words is "one trillion, two hundred twenty-four billion, two hundred sixty-eight million, seven hundred twenty-three thousand, eight hundred forty-one".