43221065404542 has 16 divisors (see below), whose sum is σ = 87732311866752. Its totient is φ = 14191991625240.

The previous prime is 43221065404423. The next prime is 43221065404547. The reversal of 43221065404542 is 24540456012234.

It is a super-2 number, since 2×43221065404542² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 43221065404494 and 43221065404503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43221065404547) 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 7 ways as a sum of consecutive naturals, for example, 53757543634 + ... + 53757544437.

It is an arithmetic number, because the mean of its divisors is an integer number (5483269491672).

Almost surely, 2^{43221065404542} is an apocalyptic number.

43221065404542 is an abundant number, since it is smaller than the sum of its proper divisors (44511246462210).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

43221065404542 is a wasteful number, since it uses less digits than its factorization.

43221065404542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107515088143.

The product of its (nonzero) digits is 921600, while the sum is 42.

The spelling of 43221065404542 in words is "forty-three trillion, two hundred twenty-one billion, sixty-five million, four hundred four thousand, five hundred forty-two".