2422242421 has 2 divisors, whose sum is σ = 2422242422. Its totient is φ = 2422242420.

The previous prime is 2422242409. The next prime is 2422242437. The reversal of 2422242421 is 1242422242.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1959390225 + 462852196 = 44265^2 + 21514^2 .

It is a cyclic number.

It is not a de Polignac number, because 2422242421 - 2⁹ = 2422241909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2422240421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1211121210 + 1211121211.

It is an arithmetic number, because the mean of its divisors is an integer number (1211121211).

Almost surely, 2^2422242421 is an apocalyptic number.

It is an amenable number.

2422242421 is a deficient number, since it is larger than the sum of its proper divisors (1).

2422242421 is an equidigital number, since it uses as much as digits as its factorization.

2422242421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4096, while the sum is 25.

The square root of 2422242421 is about 49216.2820720948. The cubic root of 2422242421 is about 1342.9892465282.

Adding to 2422242421 its reverse (1242422242), we get a palindrome (3664664663).

The spelling of 2422242421 in words is "two billion, four hundred twenty-two million, two hundred forty-two thousand, four hundred twenty-one".