12121120201 has 4 divisors (see below), whose sum is σ = 12133604304. Its totient is φ = 12108636100.

The previous prime is 12121120199. The next prime is 12121120217. The reversal of 12121120201 is 10202112121.

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 cyclic number.

It is not a de Polignac number, because 12121120201 - 2¹ = 12121120199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12121120261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6240595 + ... + 6242536.

It is an arithmetic number, because the mean of its divisors is an integer number (3033401076).

Almost surely, 2^12121120201 is an apocalyptic number.

It is an amenable number.

12121120201 is a deficient number, since it is larger than the sum of its proper divisors (12484103).

12121120201 is an equidigital number, since it uses as much as digits as its factorization.

12121120201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12484102.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 12121120201 its reverse (10202112121), we get a palindrome (22323232322).

The spelling of 12121120201 in words is "twelve billion, one hundred twenty-one million, one hundred twenty thousand, two hundred one".