422111143 has 4 divisors (see below), whose sum is σ = 422331448. Its totient is φ = 421890840.

The previous prime is 422111119. The next prime is 422111147. The reversal of 422111143 is 341111224.

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 422111143 - 2¹³ = 422102951 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 422111143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422111147) 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, 107253 + ... + 111118.

It is an arithmetic number, because the mean of its divisors is an integer number (105582862).

Almost surely, 2^422111143 is an apocalyptic number.

422111143 is a deficient number, since it is larger than the sum of its proper divisors (220305).

422111143 is a wasteful number, since it uses less digits than its factorization.

422111143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220304.

The product of its digits is 192, while the sum is 19.

The square root of 422111143 is about 20545.3435843745. The cubic root of 422111143 is about 750.1399104910.

Adding to 422111143 its reverse (341111224), we get a palindrome (763222367).

The spelling of 422111143 in words is "four hundred twenty-two million, one hundred eleven thousand, one hundred forty-three".