22431000012 has 96 divisors (see below), whose sum is σ = 55973836800. Its totient is φ = 6971069952.

The previous prime is 22430999977. The next prime is 22431000017. The reversal of 22431000012 is 21000013422.

It is a junction number, because it is equal to n+sod(n) for n = 22430999955 and 22431000000.

It is not an unprimeable number, because it can be changed into a prime (22431000017) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4522638 + ... + 4527594.

It is an arithmetic number, because the mean of its divisors is an integer number (583060800).

Almost surely, 2^22431000012 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22431000012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27986918400).

22431000012 is an abundant number, since it is smaller than the sum of its proper divisors (33542836788).

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

22431000012 is a wasteful number, since it uses less digits than its factorization.

22431000012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5295 (or 5293 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 22431000012 its reverse (21000013422), we get a palindrome (43431013434).

The spelling of 22431000012 in words is "twenty-two billion, four hundred thirty-one million, twelve", and thus it is an aban number.