12012220001020 has 12 divisors (see below), whose sum is σ = 25225662002184. Its totient is φ = 4804888000400.

The previous prime is 12012220001017. The next prime is 12012220001053. The reversal of 12012220001020 is 2010002221021.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 300305500006 + ... + 300305500045.

It is an arithmetic number, because the mean of its divisors is an integer number (2102138500182).

Almost surely, 2^{12012220001020} is an apocalyptic number.

12012220001020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12012220001020 is an abundant number, since it is smaller than the sum of its proper divisors (13213442001164).

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

12012220001020 is a wasteful number, since it uses less digits than its factorization.

12012220001020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600611000060 (or 600611000058 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 12012220001020 its reverse (2010002221021), we get a palindrome (14022222222041).

The spelling of 12012220001020 in words is "twelve trillion, twelve billion, two hundred twenty million, one thousand, twenty".