22126 has 16 divisors (see below), whose sum is σ = 38304. Its totient is φ = 9504.

The previous prime is 22123. The next prime is 22129. The reversal of 22126 is 62122.

22126 = 4² + 5² + ... + 40².

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (22123) and next prime (22129).

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 580 + ... + 616.

It is an arithmetic number, because the mean of its divisors is an integer number (2394).

2²²¹²⁶ is an apocalyptic number.

22126 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

22126 is a deficient number, since it is larger than the sum of its proper divisors (16178).

22126 is a wasteful number, since it uses less digits than its factorization.

22126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75.

The product of its digits is 48, while the sum is 13.

The square root of 22126 is about 148.7481092317. The cubic root of 22126 is about 28.0737849845.

Adding to 22126 its reverse (62122), we get a palindrome (84248).

It can be divided in two parts, 22 and 126, that multiplied together give a palindrome (2772).

The spelling of 22126 in words is "twenty-two thousand, one hundred twenty-six".