225052238321 has 4 divisors (see below), whose sum is σ = 234837118272. Its totient is φ = 215267358372.

The previous prime is 225052238317. The next prime is 225052238351. The reversal of 225052238321 is 123832250522.

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, and also an emirpimes, since its reverse is a distinct semiprime: 123832250522 = 2 ⋅61916125261.

It is not a de Polignac number, because 225052238321 - 2² = 225052238317 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225052238351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4892439941 + ... + 4892439986.

It is an arithmetic number, because the mean of its divisors is an integer number (58709279568).

Almost surely, 2^225052238321 is an apocalyptic number.

It is an amenable number.

225052238321 is a deficient number, since it is larger than the sum of its proper divisors (9784879951).

225052238321 is an equidigital number, since it uses as much as digits as its factorization.

225052238321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9784879950.

The product of its (nonzero) digits is 57600, while the sum is 35.

Adding to 225052238321 its reverse (123832250522), we get a palindrome (348884488843).

The spelling of 225052238321 in words is "two hundred twenty-five billion, fifty-two million, two hundred thirty-eight thousand, three hundred twenty-one".