12012120201 has 4 divisors (see below), whose sum is σ = 16016160272. Its totient is φ = 8008080132.

The previous prime is 12012120179. The next prime is 12012120203. The reversal of 12012120201 is 10202121021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a de Polignac number, because none of the positive numbers 2^k-12012120201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12012120203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2002020031 + ... + 2002020036.

It is an arithmetic number, because the mean of its divisors is an integer number (4004040068).

Almost surely, 2^12012120201 is an apocalyptic number.

It is an amenable number.

12012120201 is a deficient number, since it is larger than the sum of its proper divisors (4004040071).

12012120201 is an equidigital number, since it uses as much as digits as its factorization.

12012120201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4004040070.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 12012120201 its reverse (10202121021), we get a palindrome (22214241222).

The spelling of 12012120201 in words is "twelve billion, twelve million, one hundred twenty thousand, two hundred one".