12120211000220 has 24 divisors (see below), whose sum is σ = 25453496001024. Its totient is φ = 4847883847616.

The previous prime is 12120211000217. The next prime is 12120211000229. The reversal of 12120211000220 is 2200011202121.

It is a junction number, because it is equal to n+sod(n) for n = 12120211000195 and 12120211000204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12120211000229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12038492 + ... + 13006371.

It is an arithmetic number, because the mean of its divisors is an integer number (1060562333376).

Almost surely, 2^{12120211000220} is an apocalyptic number.

12120211000220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12120211000220 is an abundant number, since it is smaller than the sum of its proper divisors (13333285000804).

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

12120211000220 is a wasteful number, since it uses less digits than its factorization.

12120211000220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25069069 (or 25069067 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 12120211000220 its reverse (2200011202121), we get a palindrome (14320222202341).

The spelling of 12120211000220 in words is "twelve trillion, one hundred twenty billion, two hundred eleven million, two hundred twenty", and thus it is an aban number.