42221243311 has 4 divisors (see below), whose sum is σ = 45469031272. Its totient is φ = 38973455352.

The previous prime is 42221243291. The next prime is 42221243327. The reversal of 42221243311 is 11334212224.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 42221243311 - 2¹¹ = 42221241263 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 (42221243341) 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, 1623893961 + ... + 1623893986.

It is an arithmetic number, because the mean of its divisors is an integer number (11367257818).

Almost surely, 2^42221243311 is an apocalyptic number.

42221243311 is a deficient number, since it is larger than the sum of its proper divisors (3247787961).

42221243311 is a wasteful number, since it uses less digits than its factorization.

42221243311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3247787960.

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

Adding to 42221243311 its reverse (11334212224), we get a palindrome (53555455535).

The spelling of 42221243311 in words is "forty-two billion, two hundred twenty-one million, two hundred forty-three thousand, three hundred eleven".