13201212 has 12 divisors (see below), whose sum is σ = 30802856. Its totient is φ = 4400400.

The previous prime is 13201189. The next prime is 13201217. The reversal of 13201212 is 21210231.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Harshad number since it is a multiple of its sum of digits (12), and also a Moran number because the ratio is a prime number: 1100101 = 13201212 / (1 + 3 + 2 + 0 + 1 + 2 + 1 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13201217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 550039 + ... + 550062.

Almost surely, 2^13201212 is an apocalyptic number.

13201212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13201212 is an abundant number, since it is smaller than the sum of its proper divisors (17601644).

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

13201212 is a wasteful number, since it uses less digits than its factorization.

13201212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1100108 (or 1100106 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 13201212 is about 3633.3472170989. The cubic root of 13201212 is about 236.3403830988.

Adding to 13201212 its reverse (21210231), we get a palindrome (34411443).

The spelling of 13201212 in words is "thirteen million, two hundred one thousand, two hundred twelve".