222243143 has 4 divisors (see below), whose sum is σ = 222680280. Its totient is φ = 221806008.

The previous prime is 222243121. The next prime is 222243149. The reversal of 222243143 is 341342222.

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 222243143 - 2⁶ = 222243079 is a prime.

It is a super-2 number, since 2×222243143² = 98784029221036898, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222243149) 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, 217805 + ... + 218822.

It is an arithmetic number, because the mean of its divisors is an integer number (55670070).

Almost surely, 2^222243143 is an apocalyptic number.

222243143 is a deficient number, since it is larger than the sum of its proper divisors (437137).

222243143 is an equidigital number, since it uses as much as digits as its factorization.

222243143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437136.

The product of its digits is 2304, while the sum is 23.

The square root of 222243143 is about 14907.8215377030. The cubic root of 222243143 is about 605.7258714690.

Adding to 222243143 its reverse (341342222), we get a palindrome (563585365).

The spelling of 222243143 in words is "two hundred twenty-two million, two hundred forty-three thousand, one hundred forty-three".