1000121201009 has 8 divisors (see below), whose sum is σ = 1154312447808. Its totient is φ = 848759151600.

The previous prime is 1000121200997. The next prime is 1000121201041. The reversal of 1000121201009 is 9001021210001.

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 1000121201009 - 2¹⁶ = 1000121135473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1000121201309) 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, 707298587 + ... + 707300000.

It is an arithmetic number, because the mean of its divisors is an integer number (144289055976).

Almost surely, 2^{1000121201009} is an apocalyptic number.

It is an amenable number.

1000121201009 is a deficient number, since it is larger than the sum of its proper divisors (154191246799).

1000121201009 is a wasteful number, since it uses less digits than its factorization.

1000121201009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1414598695.

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

The spelling of 1000121201009 in words is "one trillion, one hundred twenty-one million, two hundred one thousand, nine".