2220123 has 4 divisors (see below), whose sum is σ = 2960168. Its totient is φ = 1480080.

The previous prime is 2220089. The next prime is 2220151. The reversal of 2220123 is 3210222.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2220123 - 2⁶ = 2220059 is a prime.

It is a super-2 number, since 2×2220123² = 9857892270258, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2220099 and 2220108.

It is not an unprimeable number, because it can be changed into a prime (2220193) 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, 370018 + ... + 370023.

It is an arithmetic number, because the mean of its divisors is an integer number (740042).

2^2220123 is an apocalyptic number.

2220123 is a deficient number, since it is larger than the sum of its proper divisors (740045).

2220123 is an equidigital number, since it uses as much as digits as its factorization.

2220123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 740044.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 2220123 is about 1490.0077181008. The cubic root of 2220123 is about 130.4544842076.

Adding to 2220123 its reverse (3210222), we get a palindrome (5430345).

Subtracting 2220123 from its reverse (3210222), we obtain a palindrome (990099).

The spelling of 2220123 in words is "two million, two hundred twenty thousand, one hundred twenty-three".