225317710221 has 8 divisors (see below), whose sum is σ = 300430678944. Its totient is φ = 150208274160.

The previous prime is 225317710213. The next prime is 225317710229. The reversal of 225317710221 is 122017713522.

It is an interprime number because it is at equal distance from previous prime (225317710213) and next prime (225317710229).

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

It is not a de Polignac number, because 225317710221 - 2³ = 225317710213 is a prime.

It is a super-4 number, since 4×225317710221⁴ (a number of 47 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225317710229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 730575 + ... + 992156.

It is an arithmetic number, because the mean of its divisors is an integer number (37553834868).

Almost surely, 2^225317710221 is an apocalyptic number.

It is an amenable number.

225317710221 is a deficient number, since it is larger than the sum of its proper divisors (75112968723).

225317710221 is a wasteful number, since it uses less digits than its factorization.

225317710221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1766331.

The product of its (nonzero) digits is 11760, while the sum is 33.

The spelling of 225317710221 in words is "two hundred twenty-five billion, three hundred seventeen million, seven hundred ten thousand, two hundred twenty-one".