212625228 has 12 divisors (see below), whose sum is σ = 496125560. Its totient is φ = 70875072.

The previous prime is 212625223. The next prime is 212625247. The reversal of 212625228 is 822526212.

212625228 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 = 212625195 and 212625204.

It is not an unprimeable number, because it can be changed into a prime (212625223) 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, 8859373 + ... + 8859396.

Almost surely, 2^212625228 is an apocalyptic number.

It is an amenable number.

212625228 is an abundant number, since it is smaller than the sum of its proper divisors (283500332).

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

212625228 is a wasteful number, since it uses less digits than its factorization.

212625228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17718776 (or 17718774 counting only the distinct ones).

The product of its digits is 7680, while the sum is 30.

The square root of 212625228 is about 14581.6743894520. The cubic root of 212625228 is about 596.8587945236.

The spelling of 212625228 in words is "two hundred twelve million, six hundred twenty-five thousand, two hundred twenty-eight".