12120221199 has 4 divisors (see below), whose sum is σ = 16160294936. Its totient is φ = 8080147464.

The previous prime is 12120221189. The next prime is 12120221221. The reversal of 12120221199 is 99112202121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99112202121 = 3 ⋅33037400707.

It is not a de Polignac number, because 12120221199 - 2³² = 7825253903 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 (12120221189) 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, 2020036864 + ... + 2020036869.

It is an arithmetic number, because the mean of its divisors is an integer number (4040073734).

Almost surely, 2^12120221199 is an apocalyptic number.

12120221199 is a deficient number, since it is larger than the sum of its proper divisors (4040073737).

12120221199 is an equidigital number, since it uses as much as digits as its factorization.

12120221199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4040073736.

The product of its (nonzero) digits is 1296, while the sum is 30.

The spelling of 12120221199 in words is "twelve billion, one hundred twenty million, two hundred twenty-one thousand, one hundred ninety-nine".