12002012001020 has 24 divisors (see below), whose sum is σ = 26300061081504. Its totient is φ = 4592074156736.

The previous prime is 12002012001017. The next prime is 12002012001079. The reversal of 12002012001020 is 2010021020021.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12002012000992 and 12002012001010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13045664759 + ... + 13045665678.

It is an arithmetic number, because the mean of its divisors is an integer number (1095835878396).

Almost surely, 2^{12002012001020} is an apocalyptic number.

12002012001020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12002012001020 is an abundant number, since it is smaller than the sum of its proper divisors (14298049080484).

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

12002012001020 is a wasteful number, since it uses less digits than its factorization.

12002012001020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26091330469 (or 26091330467 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 12002012001020 its reverse (2010021020021), we get a palindrome (14012033021041).

The spelling of 12002012001020 in words is "twelve trillion, two billion, twelve million, one thousand, twenty".