12222022120020 has 288 divisors, whose sum is σ = 37775749939200. Its totient is φ = 3197934432000.

The previous prime is 12222022119997. The next prime is 12222022120039. The reversal of 12222022120020 is 2002122022221.

12222022120020 is a `hidden beast` number, since 1 + 2 + 2 + 220 + 221 + 200 + 20 = 666.

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 = 12222022119975 and 12222022120002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 5094630781 + ... + 5094633179.

It is an arithmetic number, because the mean of its divisors is an integer number (131165798400).

Almost surely, 2^{12222022120020} is an apocalyptic number.

12222022120020 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 12222022120020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18887874969600).

12222022120020 is an abundant number, since it is smaller than the sum of its proper divisors (25553727819180).

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

12222022120020 is a wasteful number, since it uses less digits than its factorization.

12222022120020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4227 (or 4222 counting only the distinct ones).

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

Adding to 12222022120020 its reverse (2002122022221), we get a palindrome (14224144142241).

The spelling of 12222022120020 in words is "twelve trillion, two hundred twenty-two billion, twenty-two million, one hundred twenty thousand, twenty".