2220424123 has 4 divisors (see below), whose sum is σ = 2240074008. Its totient is φ = 2200774240.

The previous prime is 2220424099. The next prime is 2220424133. The reversal of 2220424123 is 3214240222.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2220424123 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2220424094 and 2220424103.

It is not an unprimeable number, because it can be changed into a prime (2220424133) 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, 9824773 + ... + 9824998.

It is an arithmetic number, because the mean of its divisors is an integer number (560018502).

Almost surely, 2^2220424123 is an apocalyptic number.

2220424123 is a deficient number, since it is larger than the sum of its proper divisors (19649885).

2220424123 is a wasteful number, since it uses less digits than its factorization.

2220424123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19649884.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 2220424123 is about 47121.3764972969. The cubic root of 2220424123 is about 1304.6038193934.

Adding to 2220424123 its reverse (3214240222), we get a palindrome (5434664345).

The spelling of 2220424123 in words is "two billion, two hundred twenty million, four hundred twenty-four thousand, one hundred twenty-three".