12212192 has 12 divisors (see below), whose sum is σ = 24042816. Its totient is φ = 6106080.

The previous prime is 12212191. The next prime is 12212197. The reversal of 12212192 is 29121221.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12212191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190784 + ... + 190847.

It is an arithmetic number, because the mean of its divisors is an integer number (2003568).

Almost surely, 2^12212192 is an apocalyptic number.

It is an amenable number.

12212192 is a deficient number, since it is larger than the sum of its proper divisors (11830624).

12212192 is an equidigital number, since it uses as much as digits as its factorization.

12212192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381641 (or 381633 counting only the distinct ones).

The product of its digits is 144, while the sum is 20.

The square root of 12212192 is about 3494.5946832215. The cubic root of 12212192 is about 230.2844118640.

It can be divided in two parts, 1221219 and 2, that added together give a palindrome (1221221).

The spelling of 12212192 in words is "twelve million, two hundred twelve thousand, one hundred ninety-two".