12001011210999 has 12 divisors (see below), whose sum is σ = 17336804380896. Its totient is φ = 7999746259392.

The previous prime is 12001011210949. The next prime is 12001011211001. The reversal of 12001011210999 is 99901211010021.

12001011210999 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12001011210999 - 2¹¹ = 12001011208951 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12001011210949) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 77241522 + ... + 77396735.

It is an arithmetic number, because the mean of its divisors is an integer number (1444733698408).

Almost surely, 2^{12001011210999} is an apocalyptic number.

12001011210999 is a deficient number, since it is larger than the sum of its proper divisors (5335793169897).

12001011210999 is a wasteful number, since it uses less digits than its factorization.

12001011210999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154646886 (or 154646883 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 36.

The spelling of 12001011210999 in words is "twelve trillion, one billion, eleven million, two hundred ten thousand, nine hundred ninety-nine".