2442322121 has 4 divisors (see below), whose sum is σ = 2442764544. Its totient is φ = 2441879700.

The previous prime is 2442322109. The next prime is 2442322133. The reversal of 2442322121 is 1212232442.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1212232442 = 2 ⋅606116221.

It is an interprime number because it is at equal distance from previous prime (2442322109) and next prime (2442322133).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2442322121 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2442322151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 212825 + ... + 224006.

It is an arithmetic number, because the mean of its divisors is an integer number (610691136).

Almost surely, 2^2442322121 is an apocalyptic number.

It is an amenable number.

2442322121 is a deficient number, since it is larger than the sum of its proper divisors (442423).

2442322121 is an equidigital number, since it uses as much as digits as its factorization.

2442322121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442422.

The product of its digits is 1536, while the sum is 23.

The square root of 2442322121 is about 49419.8555339855. The cubic root of 2442322121 is about 1346.6900386088.

Adding to 2442322121 its reverse (1212232442), we get a palindrome (3654554563).

The spelling of 2442322121 in words is "two billion, four hundred forty-two million, three hundred twenty-two thousand, one hundred twenty-one".