42468113221 has 4 divisors (see below), whose sum is σ = 42468547552. Its totient is φ = 42467678892.

The previous prime is 42468113209. The next prime is 42468113231. The reversal of 42468113221 is 12231186424.

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 a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 42468113221 - 2¹¹ = 42468111173 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 (42468113201) 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, 5830 + ... + 291496.

It is an arithmetic number, because the mean of its divisors is an integer number (10617136888).

Almost surely, 2^42468113221 is an apocalyptic number.

It is an amenable number.

42468113221 is a deficient number, since it is larger than the sum of its proper divisors (434331).

42468113221 is a wasteful number, since it uses less digits than its factorization.

42468113221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434330.

The product of its digits is 18432, while the sum is 34.

Adding to 42468113221 its reverse (12231186424), we get a palindrome (54699299645).

The spelling of 42468113221 in words is "forty-two billion, four hundred sixty-eight million, one hundred thirteen thousand, two hundred twenty-one".