12021121210120 has 32 divisors (see below), whose sum is σ = 29506388425920. Its totient is φ = 4371316803520.

The previous prime is 12021121210027. The next prime is 12021121210127. The reversal of 12021121210120 is 2101212112021.

12021121210120 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 = 12021121210094 and 12021121210103.

It is not an unprimeable number, because it can be changed into a prime (12021121210127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13660364572 + ... + 13660365451.

It is an arithmetic number, because the mean of its divisors is an integer number (922074638310).

Almost surely, 2^{12021121210120} is an apocalyptic number.

12021121210120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12021121210120 is an abundant number, since it is smaller than the sum of its proper divisors (17485267215800).

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

12021121210120 is a wasteful number, since it uses less digits than its factorization.

12021121210120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27320730045 (or 27320730041 counting only the distinct ones).

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

Adding to 12021121210120 its reverse (2101212112021), we get a palindrome (14122333322141).

The spelling of 12021121210120 in words is "twelve trillion, twenty-one billion, one hundred twenty-one million, two hundred ten thousand, one hundred twenty".