12120212110120 has 16 divisors (see below), whose sum is σ = 27270477247860. Its totient is φ = 4848084844032.

The previous prime is 12120212110081. The next prime is 12120212110121. The reversal of 12120212110120 is 2101121202121.

It can be written as a sum of positive squares in 2 ways, for example, as 11504266538436 + 615945571684 = 3391794^2 + 784822^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12120212110094 and 12120212110103.

It is not an unprimeable number, because it can be changed into a prime (12120212110121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 151502651337 + ... + 151502651416.

Almost surely, 2^{12120212110120} is an apocalyptic number.

12120212110120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12120212110120 is an abundant number, since it is smaller than the sum of its proper divisors (15150265137740).

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

12120212110120 is a wasteful number, since it uses less digits than its factorization.

12120212110120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303005302764 (or 303005302760 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 12120212110120 its reverse (2101121202121), we get a palindrome (14221333312241).

The spelling of 12120212110120 in words is "twelve trillion, one hundred twenty billion, two hundred twelve million, one hundred ten thousand, one hundred twenty".