12423222224 has 80 divisors (see below), whose sum is σ = 28672450560. Its totient is φ = 5102317440.

The previous prime is 12423222223. The next prime is 12423222281. The reversal of 12423222224 is 42222232421.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12423222193 and 12423222202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12423222223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 340247 + ... + 374985.

It is an arithmetic number, because the mean of its divisors is an integer number (358405632).

Almost surely, 2^12423222224 is an apocalyptic number.

12423222224 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12423222224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14336225280).

12423222224 is an abundant number, since it is smaller than the sum of its proper divisors (16249228336).

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

12423222224 is a wasteful number, since it uses less digits than its factorization.

12423222224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34888 (or 34882 counting only the distinct ones).

The product of its digits is 6144, while the sum is 26.

Adding to 12423222224 its reverse (42222232421), we get a palindrome (54645454645).

The spelling of 12423222224 in words is "twelve billion, four hundred twenty-three million, two hundred twenty-two thousand, two hundred twenty-four".