224144320421 has 8 divisors (see below), whose sum is σ = 256455710784. Its totient is φ = 191905623360.

The previous prime is 224144320409. The next prime is 224144320469. The reversal of 224144320421 is 124023441422.

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 224144320421 - 2¹⁰ = 224144319397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (224144320021) 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 7 ways as a sum of consecutive naturals, for example, 18166715 + ... + 18179048.

It is an arithmetic number, because the mean of its divisors is an integer number (32056963848).

Almost surely, 2^224144320421 is an apocalyptic number.

It is an amenable number.

224144320421 is a deficient number, since it is larger than the sum of its proper divisors (32311390363).

224144320421 is an equidigital number, since it uses as much as digits as its factorization.

224144320421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36346651.

The product of its (nonzero) digits is 12288, while the sum is 29.

Adding to 224144320421 its reverse (124023441422), we get a palindrome (348167761843).

The spelling of 224144320421 in words is "two hundred twenty-four billion, one hundred forty-four million, three hundred twenty thousand, four hundred twenty-one".