424342424221 has 8 divisors (see below), whose sum is σ = 425700010944. Its totient is φ = 422985420480.

The previous prime is 424342424203. The next prime is 424342424251. The reversal of 424342424221 is 122424243424.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 424342424221 - 2⁹ = 424342423709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (424342424251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1336386 + ... + 1623148.

It is an arithmetic number, because the mean of its divisors is an integer number (53212501368).

Almost surely, 2^424342424221 is an apocalyptic number.

It is an amenable number.

424342424221 is a deficient number, since it is larger than the sum of its proper divisors (1357586723).

424342424221 is a wasteful number, since it uses less digits than its factorization.

424342424221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291491.

The product of its digits is 98304, while the sum is 34.

Adding to 424342424221 its reverse (122424243424), we get a palindrome (546766667645).

The spelling of 424342424221 in words is "four hundred twenty-four billion, three hundred forty-two million, four hundred twenty-four thousand, two hundred twenty-one".