231225322 has 16 divisors (see below), whose sum is σ = 355848192. Its totient is φ = 112618080.

The previous prime is 231225317. The next prime is 231225329. The reversal of 231225322 is 223522132.

It is a junction number, because it is equal to n+sod(n) for n = 231225293 and 231225302.

It is not an unprimeable number, because it can be changed into a prime (231225329) 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, 62743 + ... + 66325.

It is an arithmetic number, because the mean of its divisors is an integer number (22240512).

Almost surely, 2^231225322 is an apocalyptic number.

231225322 is a deficient number, since it is larger than the sum of its proper divisors (124622870).

231225322 is a wasteful number, since it uses less digits than its factorization.

231225322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4413.

The product of its digits is 1440, while the sum is 22.

The square root of 231225322 is about 15206.0948964552. The cubic root of 231225322 is about 613.7786782739.

Adding to 231225322 its reverse (223522132), we get a palindrome (454747454).

The spelling of 231225322 in words is "two hundred thirty-one million, two hundred twenty-five thousand, three hundred twenty-two".