12021100020212 has 48 divisors (see below), whose sum is σ = 22437088914240. Its totient is φ = 5619033568512.

The previous prime is 12021100020211. The next prime is 12021100020253. The reversal of 12021100020212 is 21202000112021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12021100020211) 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 15 ways as a sum of consecutive naturals, for example, 4294118 + ... + 6517794.

It is an arithmetic number, because the mean of its divisors is an integer number (467439352380).

Almost surely, 2^{12021100020212} is an apocalyptic number.

It is an amenable number.

12021100020212 is a deficient number, since it is larger than the sum of its proper divisors (10415988894028).

12021100020212 is a wasteful number, since it uses less digits than its factorization.

12021100020212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2224640 (or 2224638 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 12021100020212 its reverse (21202000112021), we get a palindrome (33223100132233).

The spelling of 12021100020212 in words is "twelve trillion, twenty-one billion, one hundred million, twenty thousand, two hundred twelve".