13212244 has 12 divisors (see below), whose sum is σ = 23151604. Its totient is φ = 6597504.

The previous prime is 13212229. The next prime is 13212259. The reversal of 13212244 is 44221231.

It is an interprime number because it is at equal distance from previous prime (13212229) and next prime (13212259).

It can be written as a sum of positive squares in 2 ways, for example, as 11819844 + 1392400 = 3438^2 + 1180^2 .

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 2332 + ... + 5644.

Almost surely, 2^13212244 is an apocalyptic number.

It is an amenable number.

13212244 is a deficient number, since it is larger than the sum of its proper divisors (9939360).

13212244 is a wasteful number, since it uses less digits than its factorization.

13212244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4314 (or 4312 counting only the distinct ones).

The product of its digits is 384, while the sum is 19.

The square root of 13212244 is about 3634.8650593935. The cubic root of 13212244 is about 236.4061998120.

Adding to 13212244 its reverse (44221231), we get a palindrome (57433475).

It can be divided in two parts, 13212 and 244, that added together give a square (13456 = 116²).

The spelling of 13212244 in words is "thirteen million, two hundred twelve thousand, two hundred forty-four".