226021312 has 28 divisors (see below), whose sum is σ = 489286296. Its totient is φ = 102736640.

The previous prime is 226021303. The next prime is 226021319. The reversal of 226021312 is 213120622.

It is a self number, because there is not a number n which added to its sum of digits gives 226021312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (226021319) 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, 159823 + ... + 161230.

Almost surely, 2^226021312 is an apocalyptic number.

226021312 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

226021312 is an abundant number, since it is smaller than the sum of its proper divisors (263264984).

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

226021312 is a wasteful number, since it uses less digits than its factorization.

226021312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321076 (or 321066 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 226021312 is about 15034.0051882391. The cubic root of 226021312 is about 609.1390811398.

Adding to 226021312 its reverse (213120622), we get a palindrome (439141934).

The spelling of 226021312 in words is "two hundred twenty-six million, twenty-one thousand, three hundred twelve".