4042222421 has 8 divisors (see below), whose sum is σ = 4089575424. Its totient is φ = 3995112240.

The previous prime is 4042222417. The next prime is 4042222441. The reversal of 4042222421 is 1242222404.

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 4042222421 - 2² = 4042222417 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 (4042222441) 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, 27110 + ... + 93911.

It is an arithmetic number, because the mean of its divisors is an integer number (511196928).

Almost surely, 2^4042222421 is an apocalyptic number.

It is an amenable number.

4042222421 is a deficient number, since it is larger than the sum of its proper divisors (47353003).

4042222421 is a wasteful number, since it uses less digits than its factorization.

4042222421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121411.

The product of its (nonzero) digits is 2048, while the sum is 23.

The square root of 4042222421 is about 63578.4745098528. The cubic root of 4042222421 is about 1592.9668405343.

Adding to 4042222421 its reverse (1242222404), we get a palindrome (5284444825).

The spelling of 4042222421 in words is "four billion, forty-two million, two hundred twenty-two thousand, four hundred twenty-one".