4021442242220 has 96 divisors (see below), whose sum is σ = 9211085856000. Its totient is φ = 1465835065344.

The previous prime is 4021442242193. The next prime is 4021442242231. The reversal of 4021442242220 is 222422441204.

It is a super-2 number, since 2×4021442242220² (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 276399506 + ... + 276414054.

It is an arithmetic number, because the mean of its divisors is an integer number (95948811000).

Almost surely, 2^{4021442242220} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4021442242220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4605542928000).

4021442242220 is an abundant number, since it is smaller than the sum of its proper divisors (5189643613780).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4021442242220 is a wasteful number, since it uses less digits than its factorization.

4021442242220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28107 (or 28105 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 29.

Adding to 4021442242220 its reverse (222422441204), we get a palindrome (4243864683424).

The spelling of 4021442242220 in words is "four trillion, twenty-one billion, four hundred forty-two million, two hundred forty-two thousand, two hundred twenty".