12201219 has 8 divisors (see below), whose sum is σ = 18075920. Its totient is φ = 8134128.

The previous prime is 12201193. The next prime is 12201229. The reversal of 12201219 is 91210221.

It is not a de Polignac number, because 12201219 - 2⁸ = 12200963 is a prime.

It is a super-2 number, since 2×12201219² = 297739490171922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12201229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 225922 + ... + 225975.

It is an arithmetic number, because the mean of its divisors is an integer number (2259490).

Almost surely, 2^12201219 is an apocalyptic number.

12201219 is a deficient number, since it is larger than the sum of its proper divisors (5874701).

12201219 is an equidigital number, since it uses as much as digits as its factorization.

12201219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451906 (or 451900 counting only the distinct ones).

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

The square root of 12201219 is about 3493.0243342983. The cubic root of 12201219 is about 230.2154188429.

The spelling of 12201219 in words is "twelve million, two hundred one thousand, two hundred nineteen".