22232143 has 2 divisors, whose sum is σ = 22232144. Its totient is φ = 22232142.

The previous prime is 22232117. The next prime is 22232167. The reversal of 22232143 is 34123222.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22232143 - 2¹³ = 22223951 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22232143.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22232173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11116071 + 11116072.

It is an arithmetic number, because the mean of its divisors is an integer number (11116072).

Almost surely, 2^22232143 is an apocalyptic number.

22232143 is a deficient number, since it is larger than the sum of its proper divisors (1).

22232143 is an equidigital number, since it uses as much as digits as its factorization.

22232143 is an evil number, because the sum of its binary digits is even.

The product of its digits is 576, while the sum is 19.

The square root of 22232143 is about 4715.0973478816. The cubic root of 22232143 is about 281.1860530831.

Adding to 22232143 its reverse (34123222), we get a palindrome (56355365).

The spelling of 22232143 in words is "twenty-two million, two hundred thirty-two thousand, one hundred forty-three".