12022021120 has 88 divisors (see below), whose sum is σ = 28944154224. Its totient is φ = 4791238656.

The previous prime is 12022021097. The next prime is 12022021127. The reversal of 12022021120 is 2112022021.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 12022021120.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12022021127) 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 7 ways as a sum of consecutive naturals, for example, 1444812 + ... + 1453108.

Almost surely, 2^12022021120 is an apocalyptic number.

12022021120 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 12022021120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14472077112).

12022021120 is an abundant number, since it is smaller than the sum of its proper divisors (16922133104).

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

12022021120 is an equidigital number, since it uses as much as digits as its factorization.

12022021120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8605 (or 8587 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 12022021120 its reverse (2112022021), we get a palindrome (14134043141).

Subtracting from 12022021120 its reverse (2112022021), we obtain a palindrome (9909999099).

The spelling of 12022021120 in words is "twelve billion, twenty-two million, twenty-one thousand, one hundred twenty".