212625227 has 4 divisors (see below), whose sum is σ = 217149216. Its totient is φ = 208101240.

The previous prime is 212625223. The next prime is 212625247. The reversal of 212625227 is 722526212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 212625227 - 2² = 212625223 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 212625227.

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, 2261924 + ... + 2262017.

It is an arithmetic number, because the mean of its divisors is an integer number (54287304).

Almost surely, 2^212625227 is an apocalyptic number.

212625227 is a deficient number, since it is larger than the sum of its proper divisors (4523989).

212625227 is an equidigital number, since it uses as much as digits as its factorization.

212625227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4523988.

The product of its digits is 6720, while the sum is 29.

The square root of 212625227 is about 14581.6743551624. The cubic root of 212625227 is about 596.8587935879.

The spelling of 212625227 in words is "two hundred twelve million, six hundred twenty-five thousand, two hundred twenty-seven".