12225303231 has 8 divisors (see below), whose sum is σ = 16302208944. Its totient is φ = 8149299840.

The previous prime is 12225303217. The next prime is 12225303241. The reversal of 12225303231 is 13230352221.

It is a happy number.

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

It is not a de Polignac number, because 12225303231 - 2¹⁷ = 12225172159 is a prime.

It is a super-2 number, since 2×12225303231² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12225303241) 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, 193306 + ... + 248631.

It is an arithmetic number, because the mean of its divisors is an integer number (2037776118).

Almost surely, 2^12225303231 is an apocalyptic number.

12225303231 is a deficient number, since it is larger than the sum of its proper divisors (4076905713).

12225303231 is an equidigital number, since it uses as much as digits as its factorization.

12225303231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451161.

The product of its (nonzero) digits is 2160, while the sum is 24.

Adding to 12225303231 its reverse (13230352221), we get a palindrome (25455655452).

The spelling of 12225303231 in words is "twelve billion, two hundred twenty-five million, three hundred three thousand, two hundred thirty-one".