12022013440 has 160 divisors (see below), whose sum is σ = 30168319104. Its totient is φ = 4589813760.

The previous prime is 12022013429. The next prime is 12022013441. The reversal of 12022013440 is 4431022021.

It is a tau number, because it is divible by the number of its divisors (160).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12022013441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4931902 + ... + 4934338.

Almost surely, 2^12022013440 is an apocalyptic number.

12022013440 is a gapful number since it is divisible by the number (10) 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 12022013440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15084159552).

12022013440 is an abundant number, since it is smaller than the sum of its proper divisors (18146305664).

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

12022013440 is an equidigital number, since it uses as much as digits as its factorization.

12022013440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2548 (or 2532 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 12022013440 its reverse (4431022021), we get a palindrome (16453035461).

The spelling of 12022013440 in words is "twelve billion, twenty-two million, thirteen thousand, four hundred forty".