4042211440221 has 20 divisors (see below), whose sum is σ = 6038420733664. Its totient is φ = 2694782860200.

The previous prime is 4042211440217. The next prime is 4042211440277. The reversal of 4042211440221 is 1220441122404.

4042211440221 is a `hidden beast` number, since 4 + 0 + 4 + 2 + 211 + 440 + 2 + 2 + 1 = 666.

It is not a de Polignac number, because 4042211440221 - 2² = 4042211440217 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4042211440121) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 14237826 + ... + 14518956.

Almost surely, 2^{4042211440221} is an apocalyptic number.

It is an amenable number.

4042211440221 is a deficient number, since it is larger than the sum of its proper divisors (1996209293443).

4042211440221 is a wasteful number, since it uses less digits than its factorization.

4042211440221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458654 (or 458645 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 27.

Adding to 4042211440221 its reverse (1220441122404), we get a palindrome (5262652562625).

The spelling of 4042211440221 in words is "four trillion, forty-two billion, two hundred eleven million, four hundred forty thousand, two hundred twenty-one".