12211001001200 has 30 divisors (see below), whose sum is σ = 29336929906344. Its totient is φ = 4884400400320.

The previous prime is 12211001001187. The next prime is 12211001001223. The reversal of 12211001001200 is 210010011221.

It is a congruent number.

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 5 ways as a sum of consecutive naturals, for example, 15263750852 + ... + 15263751651.

Almost surely, 2^{12211001001200} is an apocalyptic number.

12211001001200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12211001001200 is an abundant number, since it is smaller than the sum of its proper divisors (17125928905144).

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

12211001001200 is a wasteful number, since it uses less digits than its factorization.

12211001001200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30527502521 (or 30527502510 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 12211001001200 its reverse (210010011221), we get a palindrome (12421011012421).

The spelling of 12211001001200 in words is "twelve trillion, two hundred eleven billion, one million, one thousand, two hundred".