12122220010120 has 128 divisors (see below), whose sum is σ = 31344560409600. Its totient is φ = 4172876870400.

The previous prime is 12122220010081. The next prime is 12122220010189. The reversal of 12122220010120 is 2101002222121.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12122220010094 and 12122220010103.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10371805 + ... + 11481235.

It is an arithmetic number, because the mean of its divisors is an integer number (244879378200).

Almost surely, 2^{12122220010120} is an apocalyptic number.

12122220010120 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 12122220010120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15672280204800).

12122220010120 is an abundant number, since it is smaller than the sum of its proper divisors (19222340399480).

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

12122220010120 is a wasteful number, since it uses less digits than its factorization.

12122220010120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1110779 (or 1110775 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12122220010120 its reverse (2101002222121), we get a palindrome (14223222232241).

The spelling of 12122220010120 in words is "twelve trillion, one hundred twenty-two billion, two hundred twenty million, ten thousand, one hundred twenty".