224122303221421 has 4 divisors (see below), whose sum is σ = 244497058059744. Its totient is φ = 203747548383100.

The previous prime is 224122303221403. The next prime is 224122303221449. The reversal of 224122303221421 is 124122303221422.

224122303221421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 224122303221421 - 2³⁷ = 223984864267949 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 (224122303221121) 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, 10187377419145 + ... + 10187377419166.

It is an arithmetic number, because the mean of its divisors is an integer number (61124264514936).

Almost surely, 2^{224122303221421} is an apocalyptic number.

It is an amenable number.

224122303221421 is a deficient number, since it is larger than the sum of its proper divisors (20374754838323).

224122303221421 is a wasteful number, since it uses less digits than its factorization.

224122303221421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20374754838322.

The product of its (nonzero) digits is 18432, while the sum is 31.

Adding to 224122303221421 its reverse (124122303221422), we get a palindrome (348244606442843).

Subtracting from 224122303221421 its reverse (124122303221422), we obtain a palindrome (99999999999999).

The spelling of 224122303221421 in words is "two hundred twenty-four trillion, one hundred twenty-two billion, three hundred three million, two hundred twenty-one thousand, four hundred twenty-one".