12102102219 has 4 divisors (see below), whose sum is σ = 16136136296. Its totient is φ = 8068068144.

The previous prime is 12102102157. The next prime is 12102102223. The reversal of 12102102219 is 91220120121.

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

It is not a de Polignac number, because 12102102219 - 2¹² = 12102098123 is a prime.

It is a super-2 number, since 2×12102102219² (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 = 12102102195 and 12102102204.

It is not an unprimeable number, because it can be changed into a prime (12102102319) 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, 2017017034 + ... + 2017017039.

It is an arithmetic number, because the mean of its divisors is an integer number (4034034074).

Almost surely, 2^12102102219 is an apocalyptic number.

12102102219 is a deficient number, since it is larger than the sum of its proper divisors (4034034077).

12102102219 is an equidigital number, since it uses as much as digits as its factorization.

12102102219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4034034076.

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

The spelling of 12102102219 in words is "twelve billion, one hundred two million, one hundred two thousand, two hundred nineteen".