12222202112120 has 512 divisors, whose sum is σ = 37651511439360. Its totient is φ = 3447650304000.

The previous prime is 12222202112051. The next prime is 12222202112137. The reversal of 12222202112120 is 2121120222221.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 12222202112092 and 12222202112101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 514542164 + ... + 514565916.

It is an arithmetic number, because the mean of its divisors is an integer number (73538108280).

Almost surely, 2^{12222202112120} is an apocalyptic number.

12222202112120 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 12222202112120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18825755719680).

12222202112120 is an abundant number, since it is smaller than the sum of its proper divisors (25429309327240).

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

12222202112120 is a wasteful number, since it uses less digits than its factorization.

12222202112120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24047 (or 24043 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 12222202112120 its reverse (2121120222221), we get a palindrome (14343322334341).

The spelling of 12222202112120 in words is "twelve trillion, two hundred twenty-two billion, two hundred two million, one hundred twelve thousand, one hundred twenty".