42230221 has 8 divisors (see below), whose sum is σ = 46526688. Its totient is φ = 38010000.

The previous prime is 42230219. The next prime is 42230249. The reversal of 42230221 is 12203224.

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

It is a cyclic number.

It is not a de Polignac number, because 42230221 - 2¹ = 42230219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42230195 and 42230204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42230821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17895 + ... + 20116.

It is an arithmetic number, because the mean of its divisors is an integer number (5815836).

Almost surely, 2^42230221 is an apocalyptic number.

It is an amenable number.

42230221 is a deficient number, since it is larger than the sum of its proper divisors (4296467).

42230221 is a wasteful number, since it uses less digits than its factorization.

42230221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38123.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 42230221 is about 6498.4783603548. The cubic root of 42230221 is about 348.2366300294.

Adding to 42230221 its reverse (12203224), we get a palindrome (54433445).

The spelling of 42230221 in words is "forty-two million, two hundred thirty thousand, two hundred twenty-one".