143222111 has 4 divisors (see below), whose sum is σ = 143553312. Its totient is φ = 142890912.

The previous prime is 143222099. The next prime is 143222119. The reversal of 143222111 is 111222341.

143222111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 143222111 - 2¹⁰ = 143221087 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 143222111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143222119) 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, 164951 + ... + 165816.

It is an arithmetic number, because the mean of its divisors is an integer number (35888328).

Almost surely, 2^143222111 is an apocalyptic number.

143222111 is a deficient number, since it is larger than the sum of its proper divisors (331201).

143222111 is an equidigital number, since it uses as much as digits as its factorization.

143222111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331200.

The product of its digits is 96, while the sum is 17.

The square root of 143222111 is about 11967.5440671844. The cubic root of 143222111 is about 523.2027566725.

Adding to 143222111 its reverse (111222341), we get a palindrome (254444452).

The spelling of 143222111 in words is "one hundred forty-three million, two hundred twenty-two thousand, one hundred eleven".