12021011002120 has 16 divisors (see below), whose sum is σ = 27047274754860. Its totient is φ = 4808404400832.

The previous prime is 12021011002109. The next prime is 12021011002129. The reversal of 12021011002120 is 2120011012021.

12021011002120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 10960774218436 + 1060236783684 = 3310706^2 + 1029678^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12021011002120.

It is not an unprimeable number, because it can be changed into a prime (12021011002129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 150262637487 + ... + 150262637566.

Almost surely, 2^{12021011002120} is an apocalyptic number.

12021011002120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12021011002120 is an abundant number, since it is smaller than the sum of its proper divisors (15026263752740).

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

12021011002120 is a wasteful number, since it uses less digits than its factorization.

12021011002120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300525275064 (or 300525275060 counting only the distinct ones).

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

Adding to 12021011002120 its reverse (2120011012021), we get a palindrome (14141022014141).

Subtracting from 12021011002120 its reverse (2120011012021), we obtain a palindrome (9900999990099).

The spelling of 12021011002120 in words is "twelve trillion, twenty-one billion, eleven million, two thousand, one hundred twenty".