22126871 has 8 divisors (see below), whose sum is σ = 23955120. Its totient is φ = 20316672.

The previous prime is 22126861. The next prime is 22126889. The reversal of 22126871 is 17862122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22126871 - 2⁶ = 22126807 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 (22126831) 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 7 ways as a sum of consecutive naturals, for example, 1901 + ... + 6918.

It is an arithmetic number, because the mean of its divisors is an integer number (2994390).

Almost surely, 2^22126871 is an apocalyptic number.

22126871 is a deficient number, since it is larger than the sum of its proper divisors (1828249).

22126871 is a wasteful number, since it uses less digits than its factorization.

22126871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9025.

The product of its digits is 2688, while the sum is 29.

The square root of 22126871 is about 4703.9208114083. The cubic root of 22126871 is about 280.7415335872.

Adding to 22126871 its reverse (17862122), we get a palindrome (39988993).

The spelling of 22126871 in words is "twenty-two million, one hundred twenty-six thousand, eight hundred seventy-one".