12011110201999 has 4 divisors (see below), whose sum is σ = 12011132523136. Its totient is φ = 12011087880864.

The previous prime is 12011110201973. The next prime is 12011110202023. The reversal of 12011110201999 is 99910201111021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12011110201999 - 2⁹ = 12011110201487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12011110202999) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10332954 + ... + 11436439.

It is an arithmetic number, because the mean of its divisors is an integer number (3002783130784).

Almost surely, 2^{12011110201999} is an apocalyptic number.

12011110201999 is a deficient number, since it is larger than the sum of its proper divisors (22321137).

12011110201999 is an equidigital number, since it uses as much as digits as its factorization.

12011110201999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22321136.

The product of its (nonzero) digits is 2916, while the sum is 37.

The spelling of 12011110201999 in words is "twelve trillion, eleven billion, one hundred ten million, two hundred one thousand, nine hundred ninety-nine".