42221303441 has 4 divisors (see below), whose sum is σ = 42755750400. Its totient is φ = 41686856484.

The previous prime is 42221303437. The next prime is 42221303471. The reversal of 42221303441 is 14430312224.

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.

It is a cyclic number.

It is not a de Polignac number, because 42221303441 - 2² = 42221303437 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42221303441.

It is not an unprimeable number, because it can be changed into a prime (42221303471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 267223361 + ... + 267223518.

It is an arithmetic number, because the mean of its divisors is an integer number (10688937600).

Almost surely, 2^42221303441 is an apocalyptic number.

It is an amenable number.

42221303441 is a deficient number, since it is larger than the sum of its proper divisors (534446959).

42221303441 is an equidigital number, since it uses as much as digits as its factorization.

42221303441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 534446958.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 42221303441 its reverse (14430312224), we get a palindrome (56651615665).

The spelling of 42221303441 in words is "forty-two billion, two hundred twenty-one million, three hundred three thousand, four hundred forty-one".