20120002120009 has 8 divisors (see below), whose sum is σ = 21951351243360. Its totient is φ = 18289029333600.

The previous prime is 20120002119953. The next prime is 20120002120027. The reversal of 20120002120009 is 90002120002102.

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 20120002120009 - 2¹¹ = 20120002117961 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20120002150009) 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, 93972439 + ... + 94186300.

It is an arithmetic number, because the mean of its divisors is an integer number (2743918905420).

Almost surely, 2^{20120002120009} is an apocalyptic number.

It is an amenable number.

20120002120009 is a deficient number, since it is larger than the sum of its proper divisors (1831349123351).

20120002120009 is a wasteful number, since it uses less digits than its factorization.

20120002120009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188168471.

The product of its (nonzero) digits is 144, while the sum is 19.

The spelling of 20120002120009 in words is "twenty trillion, one hundred twenty billion, two million, one hundred twenty thousand, nine".