231222125 has 16 divisors (see below), whose sum is σ = 291383040. Its totient is φ = 183171600.

The previous prime is 231222119. The next prime is 231222127. The reversal of 231222125 is 521222132.

It is not a de Polignac number, because 231222125 - 2⁸ = 231221869 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 231222097 and 231222106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231222127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3896 + ... + 21854.

It is an arithmetic number, because the mean of its divisors is an integer number (18211440).

Almost surely, 2^231222125 is an apocalyptic number.

231222125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

231222125 is a deficient number, since it is larger than the sum of its proper divisors (60160915).

231222125 is a wasteful number, since it uses less digits than its factorization.

231222125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18077 (or 18067 counting only the distinct ones).

The product of its digits is 480, while the sum is 20.

The square root of 231222125 is about 15205.9897737701. The cubic root of 231222125 is about 613.7758494898.

Adding to 231222125 its reverse (521222132), we get a palindrome (752444257).

The spelling of 231222125 in words is "two hundred thirty-one million, two hundred twenty-two thousand, one hundred twenty-five".