4240442242221 has 8 divisors (see below), whose sum is σ = 5667041142144. Its totient is φ = 2820402418560.

The previous prime is 4240442242213. The next prime is 4240442242259. The reversal of 4240442242221 is 1222422440424.

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

It is not a de Polignac number, because 4240442242221 - 2³ = 4240442242213 is a prime.

It is a super-2 number, since 2×4240442242221² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4240442242261) 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, 1639767556 + ... + 1639770141.

It is an arithmetic number, because the mean of its divisors is an integer number (708380142768).

Almost surely, 2^{4240442242221} is an apocalyptic number.

It is an amenable number.

4240442242221 is a deficient number, since it is larger than the sum of its proper divisors (1426598899923).

4240442242221 is a wasteful number, since it uses less digits than its factorization.

4240442242221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3279538131.

The product of its (nonzero) digits is 65536, while the sum is 33.

Adding to 4240442242221 its reverse (1222422440424), we get a palindrome (5462864682645).

The spelling of 4240442242221 in words is "four trillion, two hundred forty billion, four hundred forty-two million, two hundred forty-two thousand, two hundred twenty-one".