12020211110120 has 64 divisors (see below), whose sum is σ = 28505965986000. Its totient is φ = 4554698057728.

The previous prime is 12020211110077. The next prime is 12020211110129. The reversal of 12020211110120 is 2101111202021.

It can be written as a sum of positive squares in 8 ways, for example, as 5478473896996 + 6541737213124 = 2340614^2 + 2557682^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12020211110095 and 12020211110104.

It is not an unprimeable number, because it can be changed into a prime (12020211110129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97695605 + ... + 97818564.

Almost surely, 2^{12020211110120} is an apocalyptic number.

12020211110120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12020211110120 is an abundant number, since it is smaller than the sum of its proper divisors (16485754875880).

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

12020211110120 is a wasteful number, since it uses less digits than its factorization.

12020211110120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195514262 (or 195514258 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 12020211110120 its reverse (2101111202021), we get a palindrome (14121322312141).

The spelling of 12020211110120 in words is "twelve trillion, twenty billion, two hundred eleven million, one hundred ten thousand, one hundred twenty".