42003416221 has 8 divisors (see below), whose sum is σ = 45236056824. Its totient is φ = 38771005440.

The previous prime is 42003416209. The next prime is 42003416249. The reversal of 42003416221 is 12261430024.

It is a happy number.

42003416221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 3422500 + 41999993721 = 1850^2 + 204939^2 .

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 42003416221 - 2⁷ = 42003416093 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 (42003416291) 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, 605685 + ... + 671461.

It is an arithmetic number, because the mean of its divisors is an integer number (5654507103).

Almost surely, 2^42003416221 is an apocalyptic number.

It is an amenable number.

42003416221 is a deficient number, since it is larger than the sum of its proper divisors (3232640603).

42003416221 is a wasteful number, since it uses less digits than its factorization.

42003416221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114911.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 42003416221 its reverse (12261430024), we get a palindrome (54264846245).

The spelling of 42003416221 in words is "forty-two billion, three million, four hundred sixteen thousand, two hundred twenty-one".