2011121009999 has 8 divisors (see below), whose sum is σ = 2098575300192. Its totient is φ = 1923667907040.

The previous prime is 2011121009993. The next prime is 2011121010001. The reversal of 2011121009999 is 9999001211102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2011121009999 - 2⁴ = 2011121009983 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 (2011121009993) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6079529 + ... + 6401789.

It is an arithmetic number, because the mean of its divisors is an integer number (262321912524).

Almost surely, 2^{2011121009999} is an apocalyptic number.

2011121009999 is a deficient number, since it is larger than the sum of its proper divisors (87454290193).

2011121009999 is a wasteful number, since it uses less digits than its factorization.

2011121009999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 593617.

The product of its (nonzero) digits is 26244, while the sum is 44.

The spelling of 2011121009999 in words is "two trillion, eleven billion, one hundred twenty-one million, nine thousand, nine hundred ninety-nine".