424242222401 has 4 divisors (see below), whose sum is σ = 424551213012. Its totient is φ = 423933231792.

The previous prime is 424242222241. The next prime is 424242222403. The reversal of 424242222401 is 104222242424.

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

It can be written as a sum of positive squares in 2 ways, for example, as 362861664400 + 61380558001 = 602380^2 + 247751^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-424242222401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (424242222403) 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, 154493246 + ... + 154495991.

It is an arithmetic number, because the mean of its divisors is an integer number (106137803253).

Almost surely, 2^424242222401 is an apocalyptic number.

It is an amenable number.

424242222401 is a deficient number, since it is larger than the sum of its proper divisors (308990611).

424242222401 is a wasteful number, since it uses less digits than its factorization.

424242222401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308990610.

The product of its (nonzero) digits is 16384, while the sum is 29.

Adding to 424242222401 its reverse (104222242424), we get a palindrome (528464464825).

The spelling of 424242222401 in words is "four hundred twenty-four billion, two hundred forty-two million, two hundred twenty-two thousand, four hundred one".