224534425021 has 4 divisors (see below), whose sum is σ = 224980816032. Its totient is φ = 224088034012.

The previous prime is 224534425009. The next prime is 224534425051. The reversal of 224534425021 is 120524435422.

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 224534425021 - 2¹³ = 224534416829 is a prime.

It is a super-2 number, since 2×224534425021² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (224534425051) 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, 223194751 + ... + 223195756.

It is an arithmetic number, because the mean of its divisors is an integer number (56245204008).

Almost surely, 2^224534425021 is an apocalyptic number.

It is an amenable number.

224534425021 is a deficient number, since it is larger than the sum of its proper divisors (446391011).

224534425021 is an equidigital number, since it uses as much as digits as its factorization.

224534425021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446391010.

The product of its (nonzero) digits is 76800, while the sum is 34.

The spelling of 224534425021 in words is "two hundred twenty-four billion, five hundred thirty-four million, four hundred twenty-five thousand, twenty-one".