222143313 has 12 divisors (see below), whose sum is σ = 344549040. Its totient is φ = 126938952.

The previous prime is 222143281. The next prime is 222143321. The reversal of 222143313 is 313341222.

It is not a de Polignac number, because 222143313 - 2⁵ = 222143281 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 222143313.

It is not an unprimeable number, because it can be changed into a prime (222143353) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 755443 + ... + 755736.

It is an arithmetic number, because the mean of its divisors is an integer number (28712420).

Almost surely, 2^222143313 is an apocalyptic number.

It is an amenable number.

222143313 is a deficient number, since it is larger than the sum of its proper divisors (122405727).

222143313 is a wasteful number, since it uses less digits than its factorization.

222143313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1511196 (or 1511189 counting only the distinct ones).

The product of its digits is 864, while the sum is 21.

The square root of 222143313 is about 14904.4729192280. The cubic root of 222143313 is about 605.6351620034.

Adding to 222143313 its reverse (313341222), we get a palindrome (535484535).

The spelling of 222143313 in words is "two hundred twenty-two million, one hundred forty-three thousand, three hundred thirteen".