43221304042 has 16 divisors (see below), whose sum is σ = 74096605440. Its totient is φ = 18522680688.

The previous prime is 43221304037. The next prime is 43221304069. The reversal of 43221304042 is 24040312234.

It is a happy number.

It is a super-2 number, since 2×43221304042² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 43221303998 and 43221304016.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 452559 + ... + 539677.

It is an arithmetic number, because the mean of its divisors is an integer number (4631037840).

Almost surely, 2^43221304042 is an apocalyptic number.

43221304042 is a deficient number, since it is larger than the sum of its proper divisors (30875301398).

43221304042 is a wasteful number, since it uses less digits than its factorization.

43221304042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122565.

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 43221304042 its reverse (24040312234), we get a palindrome (67261616276).

The spelling of 43221304042 in words is "forty-three billion, two hundred twenty-one million, three hundred four thousand, forty-two".