12231223040 has 36 divisors (see below), whose sum is σ = 29297604504. Its totient is φ = 4892488704.

The previous prime is 12231223007. The next prime is 12231223057. The reversal of 12231223040 is 4032213221.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4776542 + ... + 4779101.

Almost surely, 2^12231223040 is an apocalyptic number.

12231223040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12231223040 is an abundant number, since it is smaller than the sum of its proper divisors (17066381464).

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

12231223040 is an frugal number, since it uses more digits than its factorization.

12231223040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9555664 (or 9555650 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 12231223040 its reverse (4032213221), we get a palindrome (16263436261).

The spelling of 12231223040 in words is "twelve billion, two hundred thirty-one million, two hundred twenty-three thousand, forty".