224432102221 has 4 divisors (see below), whose sum is σ = 224445927132. Its totient is φ = 224418277312.

The previous prime is 224432102179. The next prime is 224432102227. The reversal of 224432102221 is 122201234422.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 205494489225 + 18937612996 = 453315^2 + 137614^2 .

It is a cyclic number.

It is not a de Polignac number, because 224432102221 - 2²⁷ = 224297884493 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 (224432102227) 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, 6888076 + ... + 6920581.

It is an arithmetic number, because the mean of its divisors is an integer number (56111481783).

Almost surely, 2^224432102221 is an apocalyptic number.

It is an amenable number.

224432102221 is a deficient number, since it is larger than the sum of its proper divisors (13824911).

224432102221 is a wasteful number, since it uses less digits than its factorization.

224432102221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13824910.

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 224432102221 its reverse (122201234422), we get a palindrome (346633336643).

The spelling of 224432102221 in words is "two hundred twenty-four billion, four hundred thirty-two million, one hundred two thousand, two hundred twenty-one".