222221313 has 12 divisors (see below), whose sum is σ = 332875088. Its totient is φ = 148147380.

The previous prime is 222221309. The next prime is 222221327. The reversal of 222221313 is 313122222.

It is not a de Polignac number, because 222221313 - 2² = 222221309 is a prime.

It is a super-3 number, since 3×222221313³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222221333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 457003 + ... + 457488.

Almost surely, 2^222221313 is an apocalyptic number.

It is an amenable number.

222221313 is a deficient number, since it is larger than the sum of its proper divisors (110653775).

222221313 is an frugal number, since it uses more digits than its factorization.

222221313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 914506 (or 914494 counting only the distinct ones).

The product of its digits is 288, while the sum is 18.

The square root of 222221313 is about 14907.0893537270. The cubic root of 222221313 is about 605.7060381930.

Adding to 222221313 its reverse (313122222), we get a palindrome (535343535).

Subtracting 222221313 from its reverse (313122222), we obtain a palindrome (90900909).

The spelling of 222221313 in words is "two hundred twenty-two million, two hundred twenty-one thousand, three hundred thirteen".