12120212219 has 4 divisors (see below), whose sum is σ = 12165269040. Its totient is φ = 12075155400.

The previous prime is 12120212213. The next prime is 12120212261. The reversal of 12120212219 is 91221202121.

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

It is a cyclic number.

It is not a de Polignac number, because 12120212219 - 2³² = 7825244923 is a prime.

It is a super-2 number, since 2×12120212219² (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 = 12120212194 and 12120212203.

It is not an unprimeable number, because it can be changed into a prime (12120212213) 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, 22528007 + ... + 22528544.

It is an arithmetic number, because the mean of its divisors is an integer number (3041317260).

Almost surely, 2^12120212219 is an apocalyptic number.

12120212219 is a deficient number, since it is larger than the sum of its proper divisors (45056821).

12120212219 is an equidigital number, since it uses as much as digits as its factorization.

12120212219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45056820.

The product of its (nonzero) digits is 288, while the sum is 23.

The spelling of 12120212219 in words is "twelve billion, one hundred twenty million, two hundred twelve thousand, two hundred nineteen".