12120010221220 has 48 divisors (see below), whose sum is σ = 28973052114048. Its totient is φ = 4215655727360.

The previous prime is 12120010221199. The next prime is 12120010221247. The reversal of 12120010221220 is 2212201002121.

It is a happy number.

12120010221220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 12120010221194 and 12120010221203.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1197624409 + ... + 1197634528.

It is an arithmetic number, because the mean of its divisors is an integer number (603605252376).

Almost surely, 2^{12120010221220} is an apocalyptic number.

12120010221220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12120010221220 is an abundant number, since it is smaller than the sum of its proper divisors (16853041892828).

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

12120010221220 is a wasteful number, since it uses less digits than its factorization.

12120010221220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2395258980 (or 2395258978 counting only the distinct ones).

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

Adding to 12120010221220 its reverse (2212201002121), we get a palindrome (14332211223341).

The spelling of 12120010221220 in words is "twelve trillion, one hundred twenty billion, ten million, two hundred twenty-one thousand, two hundred twenty".