12455212 has 72 divisors (see below), whose sum is σ = 28440720. Its totient is φ = 4717440.

The previous prime is 12455189. The next prime is 12455221. The reversal of 12455212 is 21255421.

12455212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 114214 + ... + 114322.

It is an arithmetic number, because the mean of its divisors is an integer number (395010).

Almost surely, 2^12455212 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12455212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14220360).

12455212 is an abundant number, since it is smaller than the sum of its proper divisors (15985508).

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

12455212 is a wasteful number, since it uses less digits than its factorization.

12455212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191 (or 182 counting only the distinct ones).

The product of its digits is 800, while the sum is 22.

The square root of 12455212 is about 3529.1942423165. The cubic root of 12455212 is about 231.8019266595.

The spelling of 12455212 in words is "twelve million, four hundred fifty-five thousand, two hundred twelve".