224132251523221 has 4 divisors (see below), whose sum is σ = 224514078187392. Its totient is φ = 223750424859052.

The previous prime is 224132251523123. The next prime is 224132251523237. The reversal of 224132251523221 is 122325152231422.

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 224132251523221 - 2⁹ = 224132251522709 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 (224132251523291) 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, 190913331205 + ... + 190913332378.

It is an arithmetic number, because the mean of its divisors is an integer number (56128519546848).

Almost surely, 2^{224132251523221} is an apocalyptic number.

It is an amenable number.

224132251523221 is a deficient number, since it is larger than the sum of its proper divisors (381826664171).

224132251523221 is an equidigital number, since it uses as much as digits as its factorization.

224132251523221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381826664170.

The product of its digits is 115200, while the sum is 37.

The spelling of 224132251523221 in words is "two hundred twenty-four trillion, one hundred thirty-two billion, two hundred fifty-one million, five hundred twenty-three thousand, two hundred twenty-one".