12232355540 has 48 divisors (see below), whose sum is σ = 26236042560. Its totient is φ = 4789259520.

The previous prime is 12232355519. The next prime is 12232355543. The reversal of 12232355540 is 4555323221.

It is a junction number, because it is equal to n+sod(n) for n = 12232355497 and 12232355506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12232355543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 252695 + ... + 297185.

It is an arithmetic number, because the mean of its divisors is an integer number (546584220).

Almost surely, 2^12232355540 is an apocalyptic number.

12232355540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12232355540 is an abundant number, since it is smaller than the sum of its proper divisors (14003687020).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12232355540 is a wasteful number, since it uses less digits than its factorization.

12232355540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44792 (or 44790 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 32.

Adding to 12232355540 its reverse (4555323221), we get a palindrome (16787678761).

The spelling of 12232355540 in words is "twelve billion, two hundred thirty-two million, three hundred fifty-five thousand, five hundred forty".