12244212 has 18 divisors (see below), whose sum is σ = 30950738. Its totient is φ = 4081392.

The previous prime is 12244201. The next prime is 12244223. The reversal of 12244212 is 21244221.

It is an interprime number because it is at equal distance from previous prime (12244201) and next prime (12244223).

It can be written as a sum of positive squares in only one way, i.e., 9696996 + 2547216 = 3114^2 + 1596^2 .

It is a tau number, because it is divible by the number of its divisors (18).

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

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 170023 + ... + 170094.

Almost surely, 2^12244212 is an apocalyptic number.

12244212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12244212 is an abundant number, since it is smaller than the sum of its proper divisors (18706526).

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

12244212 is a wasteful number, since it uses less digits than its factorization.

12244212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340127 (or 340122 counting only the distinct ones).

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

The square root of 12244212 is about 3499.1730451637. The cubic root of 12244212 is about 230.4855024816.

Adding to 12244212 its reverse (21244221), we get a palindrome (33488433).

Subtracting 12244212 from its reverse (21244221), we obtain a palindrome (9000009).

The spelling of 12244212 in words is "twelve million, two hundred forty-four thousand, two hundred twelve".