42442141200221 has 16 divisors (see below), whose sum is σ = 49517655964800. Its totient is φ = 35624968793280.

The previous prime is 42442141200163. The next prime is 42442141200227. The reversal of 42442141200221 is 12200214124424.

It is a cyclic number.

It is not a de Polignac number, because 42442141200221 - 2¹⁰ = 42442141199197 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 (42442141200227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 218837246 + ... + 219031103.

It is an arithmetic number, because the mean of its divisors is an integer number (3094853497800).

Almost surely, 2^{42442141200221} is an apocalyptic number.

It is an amenable number.

42442141200221 is a deficient number, since it is larger than the sum of its proper divisors (7075514764579).

42442141200221 is a wasteful number, since it uses less digits than its factorization.

42442141200221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437868644.

The product of its (nonzero) digits is 8192, while the sum is 29.

Adding to 42442141200221 its reverse (12200214124424), we get a palindrome (54642355324645).

The spelling of 42442141200221 in words is "forty-two trillion, four hundred forty-two billion, one hundred forty-one million, two hundred thousand, two hundred twenty-one".