12020100021200 has 120 divisors (see below), whose sum is σ = 30546662561088. Its totient is φ = 4535994608640.

The previous prime is 12020100021173. The next prime is 12020100021211. The reversal of 12020100021200 is 212000102021.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8277254 + ... + 9620453.

Almost surely, 2^{12020100021200} is an apocalyptic number.

12020100021200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12020100021200 is an abundant number, since it is smaller than the sum of its proper divisors (18526562539888).

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

12020100021200 is a wasteful number, since it uses less digits than its factorization.

12020100021200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17897821 (or 17897810 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 12020100021200 its reverse (212000102021), we get a palindrome (12232100123221).

The spelling of 12020100021200 in words is "twelve trillion, twenty billion, one hundred million, twenty-one thousand, two hundred".