12021101002120 has 384 divisors, whose sum is σ = 33842092896000. Its totient is φ = 3817799516160.

The previous prime is 12021101002117. The next prime is 12021101002121. The reversal of 12021101002120 is 2120010112021.

It is a self number, because there is not a number n which added to its sum of digits gives 12021101002120.

It is not an unprimeable number, because it can be changed into a prime (12021101002121) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1464376576 + ... + 1464384784.

It is an arithmetic number, because the mean of its divisors is an integer number (88130450250).

Almost surely, 2^{12021101002120} is an apocalyptic number.

12021101002120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12021101002120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16921046448000).

12021101002120 is an abundant number, since it is smaller than the sum of its proper divisors (21820991893880).

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

12021101002120 is a wasteful number, since it uses less digits than its factorization.

12021101002120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8941 (or 8930 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 12021101002120 its reverse (2120010112021), we get a palindrome (14141111114141).

The spelling of 12021101002120 in words is "twelve trillion, twenty-one billion, one hundred one million, two thousand, one hundred twenty".