2011129190121 has 16 divisors (see below), whose sum is σ = 2682464984640. Its totient is φ = 1340273204160.

The previous prime is 2011129190089. The next prime is 2011129190123. The reversal of 2011129190121 is 1210919211102.

It is not a de Polignac number, because 2011129190121 - 2⁵ = 2011129190089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2011129190123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 159442611 + ... + 159455223.

It is an arithmetic number, because the mean of its divisors is an integer number (167654061540).

Almost surely, 2^{2011129190121} is an apocalyptic number.

It is an amenable number.

2011129190121 is a deficient number, since it is larger than the sum of its proper divisors (671335794519).

2011129190121 is a wasteful number, since it uses less digits than its factorization.

2011129190121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27416.

The product of its (nonzero) digits is 648, while the sum is 30.

The spelling of 2011129190121 in words is "two trillion, eleven billion, one hundred twenty-nine million, one hundred ninety thousand, one hundred twenty-one".