12000212200021 has 8 divisors (see below), whose sum is σ = 12203659844640. Its totient is φ = 11796766362768.

The previous prime is 12000212199971. The next prime is 12000212200033. The reversal of 12000212200021 is 12000221200021.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12000212200021 - 2¹⁵ = 12000212167253 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12000212199974 and 12000212200010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12000212200051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24811710 + ... + 25290736.

It is an arithmetic number, because the mean of its divisors is an integer number (1525457480580).

Almost surely, 2^{12000212200021} is an apocalyptic number.

It is an amenable number.

12000212200021 is a deficient number, since it is larger than the sum of its proper divisors (203447644619).

12000212200021 is an equidigital number, since it uses as much as digits as its factorization.

12000212200021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 903683.

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

Adding to 12000212200021 its reverse (12000221200021), we get a palindrome (24000433400042).

Subtracting 12000212200021 from its reverse (12000221200021), we obtain a square (9000000 = 3000²).

The spelling of 12000212200021 in words is "twelve trillion, two hundred twelve million, two hundred thousand, twenty-one".