2242120423 has 4 divisors (see below), whose sum is σ = 2251501920. Its totient is φ = 2232738928.

The previous prime is 2242120381. The next prime is 2242120549. The reversal of 2242120423 is 3240212422.

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 2242120423 - 2²⁵ = 2208565991 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2242120394 and 2242120403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2242120723) 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, 4690390 + ... + 4690867.

It is an arithmetic number, because the mean of its divisors is an integer number (562875480).

Almost surely, 2^2242120423 is an apocalyptic number.

2242120423 is a deficient number, since it is larger than the sum of its proper divisors (9381497).

2242120423 is an equidigital number, since it uses as much as digits as its factorization.

2242120423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9381496.

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

The square root of 2242120423 is about 47351.0340225005. The cubic root of 2242120423 is about 1308.8392536466.

Adding to 2242120423 its reverse (3240212422), we get a palindrome (5482332845).

The spelling of 2242120423 in words is "two billion, two hundred forty-two million, one hundred twenty thousand, four hundred twenty-three".