220122 has 24 divisors (see below), whose sum is σ = 545376. Its totient is φ = 62856.

The previous prime is 220063. The next prime is 220123. The reversal of 220122 is 221022.

220122 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (220123) by changing a digit.

220122 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 748 + ... + 999.

It is an arithmetic number, because the mean of its divisors is an integer number (22724).

2²²⁰¹²² is an apocalyptic number.

220122 is an abundant number, since it is smaller than the sum of its proper divisors (325254).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

220122 is a wasteful number, since it uses less digits than its factorization.

220122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1762 (or 1759 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

The square root of 220122 is about 469.1716103943. The cubic root of 220122 is about 60.3792642591.

Adding to 220122 its reverse (221022), we get a palindrome (441144).

Subtracting 220122 from its reverse (221022), we obtain a square (900 = 30²).

The spelling of 220122 in words is "two hundred twenty thousand, one hundred twenty-two", and thus it is an iban number.