4421221242 has 32 divisors (see below), whose sum is σ = 9086449344. Its totient is φ = 1433116800.

The previous prime is 4421221141. The next prime is 4421221243. The reversal of 4421221242 is 2421221244.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (4421221243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 502017 + ... + 510747.

It is an arithmetic number, because the mean of its divisors is an integer number (283951542).

Almost surely, 2^4421221242 is an apocalyptic number.

4421221242 is an abundant number, since it is smaller than the sum of its proper divisors (4665228102).

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

4421221242 is a wasteful number, since it uses less digits than its factorization.

4421221242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11054.

The product of its digits is 2048, while the sum is 24.

The square root of 4421221242 is about 66492.2645275373. The cubic root of 4421221242 is about 1641.2727134796.

Adding to 4421221242 its reverse (2421221244), we get a palindrome (6842442486).

The spelling of 4421221242 in words is "four billion, four hundred twenty-one million, two hundred twenty-one thousand, two hundred forty-two".