12002010121020 has 48 divisors (see below), whose sum is σ = 33605864990208. Its totient is φ = 3200513494080.

The previous prime is 12002010121007. The next prime is 12002010121033. The reversal of 12002010121020 is 2012101020021.

It is an interprime number because it is at equal distance from previous prime (12002010121007) and next prime (12002010121033).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 12002010120987 and 12002010121005.

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, 8989657 + ... + 10238063.

It is an arithmetic number, because the mean of its divisors is an integer number (700122187296).

Almost surely, 2^{12002010121020} is an apocalyptic number.

12002010121020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12002010121020 is an abundant number, since it is smaller than the sum of its proper divisors (21603854869188).

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

12002010121020 is a wasteful number, since it uses less digits than its factorization.

12002010121020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1408650 (or 1408648 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 12002010121020 its reverse (2012101020021), we get a palindrome (14014111141041).

The spelling of 12002010121020 in words is "twelve trillion, two billion, ten million, one hundred twenty-one thousand, twenty".