12002022121020 has 96 divisors (see below), whose sum is σ = 35073757071360. Its totient is φ = 3060776040960.

The previous prime is 12002022121007. The next prime is 12002022121021. The reversal of 12002022121020 is 2012122020021.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12002022121021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6090840 + ... + 7816800.

It is an arithmetic number, because the mean of its divisors is an integer number (365351636160).

Almost surely, 2^{12002022121020} is an apocalyptic number.

12002022121020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12002022121020 is an abundant number, since it is smaller than the sum of its proper divisors (23071734950340).

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

12002022121020 is a wasteful number, since it uses less digits than its factorization.

12002022121020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1731035 (or 1731033 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 12002022121020 its reverse (2012122020021), we get a palindrome (14014144141041).

The spelling of 12002022121020 in words is "twelve trillion, two billion, twenty-two million, one hundred twenty-one thousand, twenty".