12222120024 has 64 divisors (see below), whose sum is σ = 33962220000. Its totient is φ = 4072613760.

The previous prime is 12222120023. The next prime is 12222120041. The reversal of 12222120024 is 42002122221.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 12222119979 and 12222120006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12222120023) 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, 739402 + ... + 755750.

Almost surely, 2^12222120024 is an apocalyptic number.

It is an amenable number.

12222120024 is an abundant number, since it is smaller than the sum of its proper divisors (21740099976).

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

12222120024 is a wasteful number, since it uses less digits than its factorization.

12222120024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19825 (or 19815 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 12222120024 its reverse (42002122221), we get a palindrome (54224242245).

The spelling of 12222120024 in words is "twelve billion, two hundred twenty-two million, one hundred twenty thousand, twenty-four".