13212255 has 32 divisors (see below), whose sum is σ = 24998400. Its totient is φ = 5830272.

The previous prime is 13212229. The next prime is 13212259. The reversal of 13212255 is 55221231.

It is not a de Polignac number, because 13212255 - 2¹² = 13208159 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13212259) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 876 + ... + 5214.

It is an arithmetic number, because the mean of its divisors is an integer number (781200).

Almost surely, 2^13212255 is an apocalyptic number.

13212255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13212255 is a deficient number, since it is larger than the sum of its proper divisors (11786145).

13212255 is a wasteful number, since it uses less digits than its factorization.

13212255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4383.

The product of its digits is 600, while the sum is 21.

The square root of 13212255 is about 3634.8665725168. The cubic root of 13212255 is about 236.4062654195.

Adding to 13212255 its reverse (55221231), we get a palindrome (68433486).

The spelling of 13212255 in words is "thirteen million, two hundred twelve thousand, two hundred fifty-five".