42221121303013 has 4 divisors (see below), whose sum is σ = 42342098728300. Its totient is φ = 42100143877728.

The previous prime is 42221121302959. The next prime is 42221121303041. The reversal of 42221121303013 is 31030312112224.

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 20860612944964 + 21360508358049 = 4567342^2 + 4621743^2 .

It is a cyclic number.

It is not a de Polignac number, because 42221121303013 - 2¹⁷ = 42221121171941 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 (42221121313013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60488712120 + ... + 60488712817.

It is an arithmetic number, because the mean of its divisors is an integer number (10585524682075).

Almost surely, 2^{42221121303013} is an apocalyptic number.

It is an amenable number.

42221121303013 is a deficient number, since it is larger than the sum of its proper divisors (120977425287).

42221121303013 is a wasteful number, since it uses less digits than its factorization.

42221121303013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120977425286.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 42221121303013 its reverse (31030312112224), we get a palindrome (73251433415237).

The spelling of 42221121303013 in words is "forty-two trillion, two hundred twenty-one billion, one hundred twenty-one million, three hundred three thousand, thirteen".