22041143 has 4 divisors (see below), whose sum is σ = 22209528. Its totient is φ = 21872760.

The previous prime is 22041139. The next prime is 22041157. The reversal of 22041143 is 34114022.

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 22041143 - 2² = 22041139 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22041193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83996 + ... + 84257.

It is an arithmetic number, because the mean of its divisors is an integer number (5552382).

Almost surely, 2^22041143 is an apocalyptic number.

22041143 is a deficient number, since it is larger than the sum of its proper divisors (168385).

22041143 is a wasteful number, since it uses less digits than its factorization.

22041143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168384.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 22041143 is about 4694.7995697367. The cubic root of 22041143 is about 280.3784974791.

Adding to 22041143 its reverse (34114022), we get a palindrome (56155165).

The spelling of 22041143 in words is "twenty-two million, forty-one thousand, one hundred forty-three".