12214242 has 48 divisors (see below), whose sum is σ = 27937728. Its totient is φ = 3849120.

The previous prime is 12214183. The next prime is 12214243. The reversal of 12214242 is 24241221.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (12214243) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 67392 + ... + 67572.

It is an arithmetic number, because the mean of its divisors is an integer number (582036).

Almost surely, 2^12214242 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12214242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13968864).

12214242 is an abundant number, since it is smaller than the sum of its proper divisors (15723486).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12214242 is a wasteful number, since it uses less digits than its factorization.

12214242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375 (or 372 counting only the distinct ones).

The product of its digits is 256, while the sum is 18.

The square root of 12214242 is about 3494.8879810374. The cubic root of 12214242 is about 230.2972967098.

Adding to 12214242 its reverse (24241221), we get a palindrome (36455463).

The spelling of 12214242 in words is "twelve million, two hundred fourteen thousand, two hundred forty-two".