42221341213 has 8 divisors (see below), whose sum is σ = 42446306232. Its totient is φ = 41996484096.

The previous prime is 42221341199. The next prime is 42221341237. The reversal of 42221341213 is 31214312224.

It can be written as a sum of positive squares in 4 ways, for example, as 15856350084 + 26364991129 = 125922^2 + 162373^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42221341213 is a prime.

It is a super-2 number, since 2×42221341213² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42221341013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 829681 + ... + 879097.

It is an arithmetic number, because the mean of its divisors is an integer number (5305788279).

Almost surely, 2^42221341213 is an apocalyptic number.

It is an amenable number.

42221341213 is a deficient number, since it is larger than the sum of its proper divisors (224965019).

42221341213 is a wasteful number, since it uses less digits than its factorization.

42221341213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53951.

The product of its digits is 2304, while the sum is 25.

Adding to 42221341213 its reverse (31214312224), we get a palindrome (73435653437).

The spelling of 42221341213 in words is "forty-two billion, two hundred twenty-one million, three hundred forty-one thousand, two hundred thirteen".