1224042055321 has 8 divisors (see below), whose sum is σ = 1264774627584. Its totient is φ = 1183387442160.

The previous prime is 1224042055289. The next prime is 1224042055337. The reversal of 1224042055321 is 1235502404221.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1224042055321 - 2⁵ = 1224042055289 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1224042055361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19457851 + ... + 19520656.

It is an arithmetic number, because the mean of its divisors is an integer number (158096828448).

Almost surely, 2^{1224042055321} is an apocalyptic number.

It is an amenable number.

1224042055321 is a deficient number, since it is larger than the sum of its proper divisors (40732572263).

1224042055321 is a wasteful number, since it uses less digits than its factorization.

1224042055321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38979551.

The product of its (nonzero) digits is 19200, while the sum is 31.

Adding to 1224042055321 its reverse (1235502404221), we get a palindrome (2459544459542).

The spelling of 1224042055321 in words is "one trillion, two hundred twenty-four billion, forty-two million, fifty-five thousand, three hundred twenty-one".