227229215 has 4 divisors (see below), whose sum is σ = 272675064. Its totient is φ = 181783368.

The previous prime is 227229199. The next prime is 227229221. The reversal of 227229215 is 512922722.

It is a happy number.

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 227229215 - 2⁴ = 227229199 is a prime.

It is a super-2 number, since 2×227229215² = 103266232299032450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22722917 + ... + 22722926.

It is an arithmetic number, because the mean of its divisors is an integer number (68168766).

Almost surely, 2^227229215 is an apocalyptic number.

227229215 is a deficient number, since it is larger than the sum of its proper divisors (45445849).

227229215 is an equidigital number, since it uses as much as digits as its factorization.

227229215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45445848.

The product of its digits is 10080, while the sum is 32.

The square root of 227229215 is about 15074.1240209838. The cubic root of 227229215 is about 610.2222740988. Note that the first 4 decimals are identical.

The spelling of 227229215 in words is "two hundred twenty-seven million, two hundred twenty-nine thousand, two hundred fifteen".