224423313021 has 24 divisors (see below), whose sum is σ = 325482300000. Its totient is φ = 149008864032.

The previous prime is 224423313019. The next prime is 224423313047. The reversal of 224423313021 is 120313324422.

224423313021 is a `hidden beast` number, since 2 + 24 + 4 + 2 + 331 + 302 + 1 = 666.

It is not a de Polignac number, because 224423313021 - 2¹ = 224423313019 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (224423313011) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7972830 + ... + 8000928.

It is an arithmetic number, because the mean of its divisors is an integer number (13561762500).

Almost surely, 2^224423313021 is an apocalyptic number.

It is an amenable number.

224423313021 is a deficient number, since it is larger than the sum of its proper divisors (101058986979).

224423313021 is a wasteful number, since it uses less digits than its factorization.

224423313021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31673 (or 31670 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 224423313021 its reverse (120313324422), we get a palindrome (344736637443).

The spelling of 224423313021 in words is "two hundred twenty-four billion, four hundred twenty-three million, three hundred thirteen thousand, twenty-one".