12102219 has 12 divisors (see below), whose sum is σ = 17953936. Its totient is φ = 7849872.

The previous prime is 12102199. The next prime is 12102239. The reversal of 12102219 is 91220121.

12102219 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12102199) and next prime (12102239).

It is not a de Polignac number, because 12102219 - 2⁷ = 12102091 is a prime.

It is a super-2 number, since 2×12102219² = 292927409447922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12102239) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17839 + ... + 18504.

Almost surely, 2^12102219 is an apocalyptic number.

12102219 is a deficient number, since it is larger than the sum of its proper divisors (5851717).

12102219 is a wasteful number, since it uses less digits than its factorization.

12102219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36386 (or 36383 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

The square root of 12102219 is about 3478.8243703872. The cubic root of 12102219 is about 229.5910755332.

It can be divided in two parts, 12102 and 219, that added together give a palindrome (12321).

The spelling of 12102219 in words is "twelve million, one hundred two thousand, two hundred nineteen".