227221224 has 32 divisors (see below), whose sum is σ = 568969920. Its totient is φ = 75618176.

The previous prime is 227221219. The next prime is 227221231. The reversal of 227221224 is 422122722.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 227221194 and 227221203.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8212 + ... + 22844.

It is an arithmetic number, because the mean of its divisors is an integer number (17780310).

Almost surely, 2^227221224 is an apocalyptic number.

227221224 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

227221224 is an abundant number, since it is smaller than the sum of its proper divisors (341748696).

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

227221224 is a wasteful number, since it uses less digits than its factorization.

227221224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15289 (or 15285 counting only the distinct ones).

The product of its digits is 1792, while the sum is 24.

The square root of 227221224 is about 15073.8589617921. The cubic root of 227221224 is about 610.2151207590.

Adding to 227221224 its reverse (422122722), we get a palindrome (649343946).

The spelling of 227221224 in words is "two hundred twenty-seven million, two hundred twenty-one thousand, two hundred twenty-four".