2011001200999 has 16 divisors (see below), whose sum is σ = 2312429817600. Its totient is φ = 1713119128704.

The previous prime is 2011001200993. The next prime is 2011001201017. The reversal of 2011001200999 is 9990021001102.

It is a cyclic number.

It is not a de Polignac number, because 2011001200999 - 2³ = 2011001200991 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011001200991) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1774992 + ... + 2678170.

It is an arithmetic number, because the mean of its divisors is an integer number (144526863600).

Almost surely, 2^{2011001200999} is an apocalyptic number.

2011001200999 is a deficient number, since it is larger than the sum of its proper divisors (301428616601).

2011001200999 is a wasteful number, since it uses less digits than its factorization.

2011001200999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 905142.

The product of its (nonzero) digits is 2916, while the sum is 34.

The spelling of 2011001200999 in words is "two trillion, eleven billion, one million, two hundred thousand, nine hundred ninety-nine".