12232012550 has 48 divisors (see below), whose sum is σ = 24867015552. Its totient is φ = 4456435200.

The previous prime is 12232012549. The next prime is 12232012553. The reversal of 12232012550 is 5521023221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12232012553) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 205757 + ... + 258456.

It is an arithmetic number, because the mean of its divisors is an integer number (518062824).

Almost surely, 2^12232012550 is an apocalyptic number.

12232012550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12232012550 is an abundant number, since it is smaller than the sum of its proper divisors (12635003002).

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

12232012550 is a wasteful number, since it uses less digits than its factorization.

12232012550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464273 (or 464268 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

Adding to 12232012550 its reverse (5521023221), we get a palindrome (17753035771).

The spelling of 12232012550 in words is "twelve billion, two hundred thirty-two million, twelve thousand, five hundred fifty".