243221351125225 has 48 divisors (see below), whose sum is σ = 337877338841280. Its totient is φ = 172143545600000.

The previous prime is 243221351125219. The next prime is 243221351125243. The reversal of 243221351125225 is 522521153122342.

243221351125225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 243221351125225 - 2¹³ = 243221351117033 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 22376155 + ... + 31418704.

It is an arithmetic number, because the mean of its divisors is an integer number (7039111225860).

Almost surely, 2^{243221351125225} is an apocalyptic number.

243221351125225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

243221351125225 is a deficient number, since it is larger than the sum of its proper divisors (94655987716055).

243221351125225 is a wasteful number, since it uses less digits than its factorization.

243221351125225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53795322 (or 53795317 counting only the distinct ones).

The product of its digits is 288000, while the sum is 40.

The spelling of 243221351125225 in words is "two hundred forty-three trillion, two hundred twenty-one billion, three hundred fifty-one million, one hundred twenty-five thousand, two hundred twenty-five".