4022221424 has 40 divisors (see below), whose sum is σ = 8423835840. Its totient is φ = 1849483008.

The previous prime is 4022221409. The next prime is 4022221429. The reversal of 4022221424 is 4241222204.

It is a self number, because there is not a number n which added to its sum of digits gives 4022221424.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4022221429) 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, 20009 + ... + 91895.

It is an arithmetic number, because the mean of its divisors is an integer number (210595896).

Almost surely, 2^4022221424 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 4022221424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4211917920).

4022221424 is an abundant number, since it is smaller than the sum of its proper divisors (4401614416).

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

4022221424 is a wasteful number, since it uses less digits than its factorization.

4022221424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72177 (or 72171 counting only the distinct ones).

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

The square root of 4022221424 is about 63420.9856750902. The cubic root of 4022221424 is about 1590.3351513212.

Adding to 4022221424 its reverse (4241222204), we get a palindrome (8263443628).

The spelling of 4022221424 in words is "four billion, twenty-two million, two hundred twenty-one thousand, four hundred twenty-four".