1001012120009 has 8 divisors (see below), whose sum is σ = 1097556438528. Its totient is φ = 905391670960.

The previous prime is 1001012119967. The next prime is 1001012120023. The reversal of 1001012120009 is 9000212101001.

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 1001012120009 - 2¹² = 1001012115913 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1001012120029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 230965097 + ... + 230969430.

It is an arithmetic number, because the mean of its divisors is an integer number (137194554816).

Almost surely, 2^{1001012120009} is an apocalyptic number.

It is an amenable number.

1001012120009 is a deficient number, since it is larger than the sum of its proper divisors (96544318519).

1001012120009 is a wasteful number, since it uses less digits than its factorization.

1001012120009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 461934735.

The product of its (nonzero) digits is 36, while the sum is 17.

The spelling of 1001012120009 in words is "one trillion, one billion, twelve million, one hundred twenty thousand, nine".