225111331 has 8 divisors (see below), whose sum is σ = 238562064. Its totient is φ = 211683840.

The previous prime is 225111323. The next prime is 225111347. The reversal of 225111331 is 133111522.

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 225111331 - 2³ = 225111323 is a prime.

It is a super-2 number, since 2×225111331² = 101350222689183122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 225111299 and 225111308.

It is not an unprimeable number, because it can be changed into a prime (225111391) 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, 16651 + ... + 26971.

It is an arithmetic number, because the mean of its divisors is an integer number (29820258).

Almost surely, 2^225111331 is an apocalyptic number.

225111331 is a deficient number, since it is larger than the sum of its proper divisors (13450733).

225111331 is a wasteful number, since it uses less digits than its factorization.

225111331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11621.

The product of its digits is 180, while the sum is 19.

The square root of 225111331 is about 15003.7105743879. The cubic root of 225111331 is about 608.3204997022.

Adding to 225111331 its reverse (133111522), we get a palindrome (358222853).

It can be divided in two parts, 225 and 111331, that added together give a square (111556 = 334²).

The spelling of 225111331 in words is "two hundred twenty-five million, one hundred eleven thousand, three hundred thirty-one".