12101011022009 has 64 divisors (see below), whose sum is σ = 15401448910848. Its totient is φ = 9254788358400.

The previous prime is 12101011021963. The next prime is 12101011022021. The reversal of 12101011022009 is 90022011010121.

It is a de Polignac number, because none of the positive numbers 2^k-12101011022009 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12101011022059) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 74818862 + ... + 74980424.

It is an arithmetic number, because the mean of its divisors is an integer number (240647639232).

Almost surely, 2^{12101011022009} is an apocalyptic number.

It is an amenable number.

12101011022009 is a deficient number, since it is larger than the sum of its proper divisors (3300437888839).

12101011022009 is a wasteful number, since it uses less digits than its factorization.

12101011022009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161878.

The product of its (nonzero) digits is 72, while the sum is 20.

The spelling of 12101011022009 in words is "twelve trillion, one hundred one billion, eleven million, twenty-two thousand, nine".