12002100101020 has 12 divisors (see below), whose sum is σ = 25204410212184. Its totient is φ = 4800840040400.

The previous prime is 12002100101003. The next prime is 12002100101027. The reversal of 12002100101020 is 2010100120021.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 12002100100988 and 12002100101006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12002100101027) 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, 300052502506 + ... + 300052502545.

It is an arithmetic number, because the mean of its divisors is an integer number (2100367517682).

Almost surely, 2^{12002100101020} is an apocalyptic number.

12002100101020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12002100101020 is an abundant number, since it is smaller than the sum of its proper divisors (13202310111164).

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

12002100101020 is a wasteful number, since it uses less digits than its factorization.

12002100101020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600105005060 (or 600105005058 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 12002100101020 its reverse (2010100120021), we get a palindrome (14012200221041).

The spelling of 12002100101020 in words is "twelve trillion, two billion, one hundred million, one hundred one thousand, twenty".