12012000221020 has 24 divisors (see below), whose sum is σ = 25268173573104. Its totient is φ = 4796614734336.

The previous prime is 12012000220999. The next prime is 12012000221041. The reversal of 12012000221020 is 2012200021021.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12012000220999) and next prime (12012000221041).

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, 511572597 + ... + 511596076.

It is an arithmetic number, because the mean of its divisors is an integer number (1052840565546).

Almost surely, 2^{12012000221020} is an apocalyptic number.

12012000221020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12012000221020 is an abundant number, since it is smaller than the sum of its proper divisors (13256173352084).

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

12012000221020 is a wasteful number, since it uses less digits than its factorization.

12012000221020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1023169269 (or 1023169267 counting only the distinct ones).

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

Adding to 12012000221020 its reverse (2012200021021), we get a palindrome (14024200242041).

The spelling of 12012000221020 in words is "twelve trillion, twelve billion, two hundred twenty-one thousand, twenty".