12002120205 has 8 divisors (see below), whose sum is σ = 19203392352. Its totient is φ = 6401130768.

The previous prime is 12002120183. The next prime is 12002120213. The reversal of 12002120205 is 50202120021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12002120205 - 2⁸ = 12002119949 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15), and also a Moran number because the ratio is a prime number: 800141347 = 12002120205 / (1 + 2 + 0 + 0 + 2 + 1 + 2 + 0 + 2 + 0 + 5).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 400070659 + ... + 400070688.

It is an arithmetic number, because the mean of its divisors is an integer number (2400424044).

Almost surely, 2^12002120205 is an apocalyptic number.

12002120205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12002120205 is a deficient number, since it is larger than the sum of its proper divisors (7201272147).

12002120205 is an equidigital number, since it uses as much as digits as its factorization.

12002120205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 800141355.

The product of its (nonzero) digits is 80, while the sum is 15.

Adding to 12002120205 its reverse (50202120021), we get a palindrome (62204240226).

The spelling of 12002120205 in words is "twelve billion, two million, one hundred twenty thousand, two hundred five".