4220123 has 4 divisors (see below), whose sum is σ = 4356288. Its totient is φ = 4083960.

The previous prime is 4220081. The next prime is 4220137. The reversal of 4220123 is 3210224.

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

It is a cyclic number.

It is not a de Polignac number, because 4220123 - 2⁶ = 4220059 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4220098 and 4220107.

It is not an unprimeable number, because it can be changed into a prime (4220143) 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, 68036 + ... + 68097.

It is an arithmetic number, because the mean of its divisors is an integer number (1089072).

Almost surely, 2^4220123 is an apocalyptic number.

4220123 is a deficient number, since it is larger than the sum of its proper divisors (136165).

4220123 is a wasteful number, since it uses less digits than its factorization.

4220123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136164.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 4220123 is about 2054.2937959309. The cubic root of 4220123 is about 161.6001289701.

Adding to 4220123 its reverse (3210224), we get a palindrome (7430347).

It can be divided in two parts, 42201 and 23, that added together give a palindrome (42224).

The spelling of 4220123 in words is "four million, two hundred twenty thousand, one hundred twenty-three".