224221133323421 has 16 divisors (see below), whose sum is σ = 249804727522560. Its totient is φ = 199828901254080.

The previous prime is 224221133323361. The next prime is 224221133323471. The reversal of 224221133323421 is 124323331122422.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-224221133323421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (224221133323471) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 920645 + ... + 21196458.

It is an arithmetic number, because the mean of its divisors is an integer number (15612795470160).

Almost surely, 2^{224221133323421} is an apocalyptic number.

It is an amenable number.

224221133323421 is a deficient number, since it is larger than the sum of its proper divisors (25583594199139).

224221133323421 is a wasteful number, since it uses less digits than its factorization.

224221133323421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22144036.

The product of its digits is 82944, while the sum is 35.

Adding to 224221133323421 its reverse (124323331122422), we get a palindrome (348544464445843).

The spelling of 224221133323421 in words is "two hundred twenty-four trillion, two hundred twenty-one billion, one hundred thirty-three million, three hundred twenty-three thousand, four hundred twenty-one".