12002112021020 has 48 divisors (see below), whose sum is σ = 27573639353568. Its totient is φ = 4352040591360.

The previous prime is 12002112020957. The next prime is 12002112021139. The reversal of 12002112021020 is 2012021120021.

It is a super-2 number, since 2×12002112021020² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12002112020986 and 12002112021004.

It is a congruent number.

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, 77195789 + ... + 77351108.

It is an arithmetic number, because the mean of its divisors is an integer number (574450819866).

Almost surely, 2^{12002112021020} is an apocalyptic number.

12002112021020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12002112021020 is an abundant number, since it is smaller than the sum of its proper divisors (15571527332548).

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

12002112021020 is a wasteful number, since it uses less digits than its factorization.

12002112021020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154547270 (or 154547268 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 12002112021020 its reverse (2012021120021), we get a palindrome (14014133141041).

Subtracting from 12002112021020 its reverse (2012021120021), we obtain a palindrome (9990090900999).

The spelling of 12002112021020 in words is "twelve trillion, two billion, one hundred twelve million, twenty-one thousand, twenty".