42034206221 has 8 divisors (see below), whose sum is σ = 48102558720. Its totient is φ = 35981720208.

The previous prime is 42034206191. The next prime is 42034206229. The reversal of 42034206221 is 12260243024.

It is a happy number.

42034206221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-42034206221 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 (42034206229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3960941 + ... + 3971538.

It is an arithmetic number, because the mean of its divisors is an integer number (6012819840).

Almost surely, 2^42034206221 is an apocalyptic number.

It is an amenable number.

42034206221 is a deficient number, since it is larger than the sum of its proper divisors (6068352499).

42034206221 is an equidigital number, since it uses as much as digits as its factorization.

42034206221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7933243.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 42034206221 its reverse (12260243024), we get a palindrome (54294449245).

The spelling of 42034206221 in words is "forty-two billion, thirty-four million, two hundred six thousand, two hundred twenty-one".