12101219 has 4 divisors (see below), whose sum is σ = 13032096. Its totient is φ = 11170344.

The previous prime is 12101179. The next prime is 12101227. The reversal of 12101219 is 91210121.

12101219 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 cyclic number.

It is not a de Polignac number, because 12101219 - 2¹² = 12097123 is a prime.

It is a super-2 number, since 2×12101219² = 292879002571922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12101197 and 12101206.

It is not an unprimeable number, because it can be changed into a prime (12101269) 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, 465419 + ... + 465444.

It is an arithmetic number, because the mean of its divisors is an integer number (3258024).

Almost surely, 2^12101219 is an apocalyptic number.

12101219 is a deficient number, since it is larger than the sum of its proper divisors (930877).

12101219 is an equidigital number, since it uses as much as digits as its factorization.

12101219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 930876.

The product of its (nonzero) digits is 36, while the sum is 17.

The square root of 12101219 is about 3478.6806407027. The cubic root of 12101219 is about 229.5847516957.

The spelling of 12101219 in words is "twelve million, one hundred one thousand, two hundred nineteen".