13212258 has 32 divisors (see below), whose sum is σ = 29030400. Its totient is φ = 3990096.

The previous prime is 13212229. The next prime is 13212259. The reversal of 13212258 is 85221231.

It is a super-2 number, since 2×13212258² = 349127522917128, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13212259) 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 15 ways as a sum of consecutive naturals, for example, 103 + ... + 5141.

It is an arithmetic number, because the mean of its divisors is an integer number (907200).

Almost surely, 2^13212258 is an apocalyptic number.

13212258 is an abundant number, since it is smaller than the sum of its proper divisors (15818142).

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

13212258 is a wasteful number, since it uses less digits than its factorization.

13212258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5086.

The product of its digits is 960, while the sum is 24.

The square root of 13212258 is about 3634.8669851867. The cubic root of 13212258 is about 236.4062833125.

Adding to 13212258 its reverse (85221231), we get a palindrome (98433489).

The spelling of 13212258 in words is "thirteen million, two hundred twelve thousand, two hundred fifty-eight".