220126 has 4 divisors (see below), whose sum is σ = 330192. Its totient is φ = 110062.

The previous prime is 220123. The next prime is 220141. The reversal of 220126 is 621022.

It is a happy number.

220126 is nontrivially palindromic in base 12.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 621022 = 2 ⋅310511.

It is a Smith number, since the sum of its digits (13) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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 (220123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55030 + ... + 55033.

It is an arithmetic number, because the mean of its divisors is an integer number (82548).

2²²⁰¹²⁶ is an apocalyptic number.

220126 is a deficient number, since it is larger than the sum of its proper divisors (110066).

220126 is a wasteful number, since it uses less digits than its factorization.

220126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110065.

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

The square root of 220126 is about 469.1758732075. The cubic root of 220126 is about 60.3796299890.

Adding to 220126 its reverse (621022), we get a palindrome (841148).

The spelling of 220126 in words is "two hundred twenty thousand, one hundred twenty-six".