22123340412 has 24 divisors (see below), whose sum is σ = 51673991376. Its totient is φ = 7366894848.

The previous prime is 22123340399. The next prime is 22123340417. The reversal of 22123340412 is 21404332122.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22123340417) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 931783 + ... + 955230.

It is an arithmetic number, because the mean of its divisors is an integer number (2153082974).

Almost surely, 2^22123340412 is an apocalyptic number.

It is an amenable number.

22123340412 is an abundant number, since it is smaller than the sum of its proper divisors (29550650964).

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

22123340412 is a wasteful number, since it uses less digits than its factorization.

22123340412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1887997 (or 1887995 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 22123340412 its reverse (21404332122), we get a palindrome (43527672534).

The spelling of 22123340412 in words is "twenty-two billion, one hundred twenty-three million, three hundred forty thousand, four hundred twelve".