42221431042 has 24 divisors (see below), whose sum is σ = 73679382864. Its totient is φ = 18093107592.

The previous prime is 42221431033. The next prime is 42221431097. The reversal of 42221431042 is 24013412224.

It is a super-2 number, since 2×42221431042² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42221430998 and 42221431016.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 1596733 + ... + 1622959.

It is an arithmetic number, because the mean of its divisors is an integer number (3069974286).

Almost surely, 2^42221431042 is an apocalyptic number.

42221431042 is a deficient number, since it is larger than the sum of its proper divisors (31457951822).

42221431042 is a wasteful number, since it uses less digits than its factorization.

42221431042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42670 (or 42663 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 42221431042 its reverse (24013412224), we get a palindrome (66234843266).

The spelling of 42221431042 in words is "forty-two billion, two hundred twenty-one million, four hundred thirty-one thousand, forty-two".