42024400221 has 8 divisors (see below), whose sum is σ = 57964690080. Its totient is φ = 27050188592.

The previous prime is 42024400217. The next prime is 42024400247. The reversal of 42024400221 is 12200442024.

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 42024400221 - 2² = 42024400217 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42024400291) 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, 241519455 + ... + 241519628.

It is an arithmetic number, because the mean of its divisors is an integer number (7245586260).

Almost surely, 2^42024400221 is an apocalyptic number.

It is an amenable number.

42024400221 is a deficient number, since it is larger than the sum of its proper divisors (15940289859).

42024400221 is a wasteful number, since it uses less digits than its factorization.

42024400221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483039115.

The product of its (nonzero) digits is 1024, while the sum is 21.

Adding to 42024400221 its reverse (12200442024), we get a palindrome (54224842245).

The spelling of 42024400221 in words is "forty-two billion, twenty-four million, four hundred thousand, two hundred twenty-one".