2120201209999 has 8 divisors (see below), whose sum is σ = 2121370953120. Its totient is φ = 2119031616000.

The previous prime is 2120201209981. The next prime is 2120201210027. The reversal of 2120201209999 is 9999021020212.

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 2120201209999 - 2¹¹ = 2120201207951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120201209939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39676699 + ... + 39730099.

It is an arithmetic number, because the mean of its divisors is an integer number (265171369140).

Almost surely, 2^{2120201209999} is an apocalyptic number.

2120201209999 is a deficient number, since it is larger than the sum of its proper divisors (1169743121).

2120201209999 is a wasteful number, since it uses less digits than its factorization.

2120201209999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74561.

The product of its (nonzero) digits is 104976, while the sum is 46.

The spelling of 2120201209999 in words is "two trillion, one hundred twenty billion, two hundred one million, two hundred nine thousand, nine hundred ninety-nine".