42221115143 has 4 divisors (see below), whose sum is σ = 42639146088. Its totient is φ = 41803084200.

The previous prime is 42221115137. The next prime is 42221115151. The reversal of 42221115143 is 34151112224.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 42221115143 - 2¹² = 42221111047 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 (42221115133) 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 3 ways as a sum of consecutive naturals, for example, 209015321 + ... + 209015522.

It is an arithmetic number, because the mean of its divisors is an integer number (10659786522).

Almost surely, 2^42221115143 is an apocalyptic number.

42221115143 is a deficient number, since it is larger than the sum of its proper divisors (418030945).

42221115143 is a wasteful number, since it uses less digits than its factorization.

42221115143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418030944.

The product of its digits is 1920, while the sum is 26.

Adding to 42221115143 its reverse (34151112224), we get a palindrome (76372227367).

The spelling of 42221115143 in words is "forty-two billion, two hundred twenty-one million, one hundred fifteen thousand, one hundred forty-three".