12020121120 has 96 divisors (see below), whose sum is σ = 43272448128. Its totient is φ = 2747455488.

The previous prime is 12020121097. The next prime is 12020121161. The reversal of 12020121120 is 2112102021.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 12020121096 and 12020121105.

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, 1785349 + ... + 1792068.

It is an arithmetic number, because the mean of its divisors is an integer number (450754668).

Almost surely, 2^12020121120 is an apocalyptic number.

12020121120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12020121120 is an abundant number, since it is smaller than the sum of its proper divisors (31252327008).

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

12020121120 is a wasteful number, since it uses less digits than its factorization.

12020121120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3577442 (or 3577434 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 12020121120 its reverse (2112102021), we get a palindrome (14132223141).

The spelling of 12020121120 in words is "twelve billion, twenty million, one hundred twenty-one thousand, one hundred twenty".