12001201200099 has 20 divisors (see below), whose sum is σ = 17927816412000. Its totient is φ = 8000757912240.

The previous prime is 12001201200091. The next prime is 12001201200127. The reversal of 12001201200099 is 99000210210021.

It is not a de Polignac number, because 12001201200099 - 2³ = 12001201200091 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (12001201200091) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 24009777 + ... + 24504525.

It is an arithmetic number, because the mean of its divisors is an integer number (896390820600).

Almost surely, 2^{12001201200099} is an apocalyptic number.

12001201200099 is a deficient number, since it is larger than the sum of its proper divisors (5926615211901).

12001201200099 is an equidigital number, since it uses as much as digits as its factorization.

12001201200099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 794232 (or 794223 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 27.

The spelling of 12001201200099 in words is "twelve trillion, one billion, two hundred one million, two hundred thousand, ninety-nine".