12020121020120 has 64 divisors (see below), whose sum is σ = 28655430756480. Its totient is φ = 4522178461696.

The previous prime is 12020121020107. The next prime is 12020121020207. The reversal of 12020121020120 is 2102012102021.

It is a junction number, because it is equal to n+sod(n) for n = 12020121020095 and 12020121020104.

It is a congruent number.

It is an unprimeable number.

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, 4932569 + ... + 6954888.

It is an arithmetic number, because the mean of its divisors is an integer number (447741105570).

Almost surely, 2^{12020121020120} is an apocalyptic number.

12020121020120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12020121020120 is an abundant number, since it is smaller than the sum of its proper divisors (16635309736360).

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

12020121020120 is a wasteful number, since it uses less digits than its factorization.

12020121020120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11888972 (or 11888968 counting only the distinct ones).

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

Adding to 12020121020120 its reverse (2102012102021), we get a palindrome (14122133122141).

The spelling of 12020121020120 in words is "twelve trillion, twenty billion, one hundred twenty-one million, twenty thousand, one hundred twenty".