22124071 has 4 divisors (see below), whose sum is σ = 22887000. Its totient is φ = 21361144.

The previous prime is 22124027. The next prime is 22124077. The reversal of 22124071 is 17042122.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17042122 = 2 ⋅8521061.

It is a cyclic number.

It is not a de Polignac number, because 22124071 - 2⁷ = 22123943 is a prime.

It is a super-2 number, since 2×22124071² = 978949035226082, 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 (22124077) 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, 381421 + ... + 381478.

It is an arithmetic number, because the mean of its divisors is an integer number (5721750).

Almost surely, 2^22124071 is an apocalyptic number.

22124071 is a deficient number, since it is larger than the sum of its proper divisors (762929).

22124071 is an equidigital number, since it uses as much as digits as its factorization.

22124071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 762928.

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 22124071 is about 4703.6231779342. The cubic root of 22124071 is about 280.7296911318.

Adding to 22124071 its reverse (17042122), we get a palindrome (39166193).

The spelling of 22124071 in words is "twenty-two million, one hundred twenty-four thousand, seventy-one".