12231022008 has 16 divisors (see below), whose sum is σ = 30577555080. Its totient is φ = 4077007328.

The previous prime is 12231021931. The next prime is 12231022009. The reversal of 12231022008 is 80022013221.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12231022009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 254812935 + ... + 254812982.

Almost surely, 2^12231022008 is an apocalyptic number.

It is an amenable number.

12231022008 is an abundant number, since it is smaller than the sum of its proper divisors (18346533072).

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

12231022008 is a wasteful number, since it uses less digits than its factorization.

12231022008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 509625926 (or 509625922 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 12231022008 its reverse (80022013221), we get a palindrome (92253035229).

The spelling of 12231022008 in words is "twelve billion, two hundred thirty-one million, twenty-two thousand, eight".