12100221219 has 4 divisors (see below), whose sum is σ = 16133628296. Its totient is φ = 8066814144.

The previous prime is 12100221209. The next prime is 12100221277. The reversal of 12100221219 is 91212200121.

12100221219 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-12100221219 is a prime.

It is a super-2 number, since 2×12100221219² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12100221195 and 12100221204.

It is not an unprimeable number, because it can be changed into a prime (12100221209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2016703534 + ... + 2016703539.

It is an arithmetic number, because the mean of its divisors is an integer number (4033407074).

Almost surely, 2^12100221219 is an apocalyptic number.

12100221219 is a deficient number, since it is larger than the sum of its proper divisors (4033407077).

12100221219 is an equidigital number, since it uses as much as digits as its factorization.

12100221219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4033407076.

The product of its (nonzero) digits is 144, while the sum is 21.

The spelling of 12100221219 in words is "twelve billion, one hundred million, two hundred twenty-one thousand, two hundred nineteen".