12232231525 has 12 divisors (see below), whose sum is σ = 15171073632. Its totient is φ = 9783781040.

The previous prime is 12232231511. The next prime is 12232231541. The reversal of 12232231525 is 52513223221.

It is not a de Polignac number, because 12232231525 - 2⁷ = 12232231397 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12232231493 and 12232231502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 81144 + ... + 176206.

It is an arithmetic number, because the mean of its divisors is an integer number (1264256136).

Almost surely, 2^12232231525 is an apocalyptic number.

It is an amenable number.

12232231525 is a deficient number, since it is larger than the sum of its proper divisors (2938842107).

12232231525 is an equidigital number, since it uses as much as digits as its factorization.

12232231525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100220 (or 100215 counting only the distinct ones).

The product of its digits is 7200, while the sum is 28.

Adding to 12232231525 its reverse (52513223221), we get a palindrome (64745454746).

The spelling of 12232231525 in words is "twelve billion, two hundred thirty-two million, two hundred thirty-one thousand, five hundred twenty-five".