221125255 has 8 divisors (see below), whose sum is σ = 285761952. Its totient is φ = 163292448.

The previous prime is 221125253. The next prime is 221125277. The reversal of 221125255 is 552521122.

221125255 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 221125255 - 2¹ = 221125253 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 (221125253) 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, 1700899 + ... + 1701028.

It is an arithmetic number, because the mean of its divisors is an integer number (35720244).

Almost surely, 2^221125255 is an apocalyptic number.

221125255 is a deficient number, since it is larger than the sum of its proper divisors (64636697).

221125255 is a wasteful number, since it uses less digits than its factorization.

221125255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3401945.

The product of its digits is 2000, while the sum is 25.

The square root of 221125255 is about 14870.2809321142. The cubic root of 221125255 is about 604.7085589440.

Adding to 221125255 its reverse (552521122), we get a palindrome (773646377).

The spelling of 221125255 in words is "two hundred twenty-one million, one hundred twenty-five thousand, two hundred fifty-five".