210225226 has 4 divisors (see below), whose sum is σ = 315337842. Its totient is φ = 105112612.

The previous prime is 210225217. The next prime is 210225227. The reversal of 210225226 is 622522012.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 210221001 + 4225 = 14499^2 + 65^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 210225197 and 210225206.

It is not an unprimeable number, because it can be changed into a prime (210225227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52556305 + ... + 52556308.

Almost surely, 2^210225226 is an apocalyptic number.

210225226 is a deficient number, since it is larger than the sum of its proper divisors (105112616).

210225226 is a wasteful number, since it uses less digits than its factorization.

210225226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105112615.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 210225226 is about 14499.1456989714. The cubic root of 210225226 is about 594.6046155071.

Adding to 210225226 its reverse (622522012), we get a palindrome (832747238).

The spelling of 210225226 in words is "two hundred ten million, two hundred twenty-five thousand, two hundred twenty-six".