12212628 has 12 divisors (see below), whose sum is σ = 28496160. Its totient is φ = 4070872.

The previous prime is 12212623. The next prime is 12212657. The reversal of 12212628 is 82621221.

12212628 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 12212598 and 12212607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12212623) 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, 508848 + ... + 508871.

It is an arithmetic number, because the mean of its divisors is an integer number (2374680).

Almost surely, 2^12212628 is an apocalyptic number.

It is an amenable number.

12212628 is an abundant number, since it is smaller than the sum of its proper divisors (16283532).

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

12212628 is a wasteful number, since it uses less digits than its factorization.

12212628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1017726 (or 1017724 counting only the distinct ones).

The product of its digits is 768, while the sum is 24.

The square root of 12212628 is about 3494.6570647204. The cubic root of 12212628 is about 230.2871523714.

Adding to 12212628 its reverse (82621221), we get a palindrome (94833849).

The spelling of 12212628 in words is "twelve million, two hundred twelve thousand, six hundred twenty-eight".