1224044041321 has 4 divisors (see below), whose sum is σ = 1224072100944. Its totient is φ = 1224015981700.

The previous prime is 1224044041313. The next prime is 1224044041357. The reversal of 1224044041321 is 1231404404221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1224044041321 - 2³ = 1224044041313 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 1224044041321.

It is not an unprimeable number, because it can be changed into a prime (1224044041301) 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, 13964275 + ... + 14051656.

It is an arithmetic number, because the mean of its divisors is an integer number (306018025236).

Almost surely, 2^{1224044041321} is an apocalyptic number.

It is an amenable number.

1224044041321 is a deficient number, since it is larger than the sum of its proper divisors (28059623).

1224044041321 is an equidigital number, since it uses as much as digits as its factorization.

1224044041321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28059622.

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 1224044041321 its reverse (1231404404221), we get a palindrome (2455448445542).

The spelling of 1224044041321 in words is "one trillion, two hundred twenty-four billion, forty-four million, forty-one thousand, three hundred twenty-one".