22321031012 has 12 divisors (see below), whose sum is σ = 44642062080. Its totient is φ = 9566156136.

The previous prime is 22321031011. The next prime is 22321031021. The reversal of 22321031012 is 21013012322.

22321031012 is an admirable number.

It is a super-3 number, since 3×22321031012³ (a number of 32 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (22321031011) 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, 398589812 + ... + 398589867.

It is an arithmetic number, because the mean of its divisors is an integer number (3720171840).

Almost surely, 2^22321031012 is an apocalyptic number.

It is an amenable number.

22321031012 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

22321031012 is a wasteful number, since it uses less digits than its factorization.

22321031012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 797179690 (or 797179688 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 22321031012 its reverse (21013012322), we get a palindrome (43334043334).

The spelling of 22321031012 in words is "twenty-two billion, three hundred twenty-one million, thirty-one thousand, twelve".