224230802821 has 8 divisors (see below), whose sum is σ = 231968187000. Its totient is φ = 216493771200.

The previous prime is 224230802801. The next prime is 224230802837. The reversal of 224230802821 is 128208032422.

It can be written as a sum of positive squares in 4 ways, for example, as 69711840900 + 154518961921 = 264030^2 + 393089^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-224230802821 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (224230802801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2339755 + ... + 2433703.

It is an arithmetic number, because the mean of its divisors is an integer number (28996023375).

Almost surely, 2^224230802821 is an apocalyptic number.

It is an amenable number.

224230802821 is a deficient number, since it is larger than the sum of its proper divisors (7737384179).

224230802821 is an equidigital number, since it uses as much as digits as its factorization.

224230802821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176279.

The product of its (nonzero) digits is 24576, while the sum is 34.

The spelling of 224230802821 in words is "two hundred twenty-four billion, two hundred thirty million, eight hundred two thousand, eight hundred twenty-one".