13207212 has 30 divisors (see below), whose sum is σ = 34527108. Its totient is φ = 4402296.

The previous prime is 13207199. The next prime is 13207213. The reversal of 13207212 is 21270231.

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 (13207213) by changing a digit.

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 9 ways as a sum of consecutive naturals, for example, 20058 + ... + 20705.

Almost surely, 2^13207212 is an apocalyptic number.

13207212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13207212 is an abundant number, since it is smaller than the sum of its proper divisors (21319896).

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

13207212 is a wasteful number, since it uses less digits than its factorization.

13207212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40779 (or 40768 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 13207212 is about 3634.1728082192. The cubic root of 13207212 is about 236.3761835369.

Adding to 13207212 its sum of digits (18), we get a triangular number (13207230 = T₅₁₃₉).

Adding to 13207212 its reverse (21270231), we get a palindrome (34477443).

The spelling of 13207212 in words is "thirteen million, two hundred seven thousand, two hundred twelve".