12101212001200 has 120 divisors (see below), whose sum is σ = 34975232433920. Its totient is φ = 3930619219200.

The previous prime is 12101212001119. The next prime is 12101212001213. The reversal of 12101212001200 is 210021210121.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 113679996 + ... + 113786395.

Almost surely, 2^{12101212001200} is an apocalyptic number.

12101212001200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12101212001200 is an abundant number, since it is smaller than the sum of its proper divisors (22874020432720).

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

12101212001200 is a wasteful number, since it uses less digits than its factorization.

12101212001200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227466435 (or 227466424 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 12101212001200 its reverse (210021210121), we get a palindrome (12311233211321).

The spelling of 12101212001200 in words is "twelve trillion, one hundred one billion, two hundred twelve million, one thousand, two hundred".