4422001220 has 48 divisors (see below), whose sum is σ = 11429177088. Its totient is φ = 1399489920.

The previous prime is 4422001219. The next prime is 4422001237. The reversal of 4422001220 is 221002244.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1213016 + ... + 1216655.

It is an arithmetic number, because the mean of its divisors is an integer number (238107856).

Almost surely, 2^4422001220 is an apocalyptic number.

It is an amenable number.

4422001220 is an abundant number, since it is smaller than the sum of its proper divisors (7007175868).

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

4422001220 is a wasteful number, since it uses less digits than its factorization.

4422001220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2429700 (or 2429698 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 4422001220 is about 66498.1294473762. The cubic root of 4422001220 is about 1641.3692238679.

Adding to 4422001220 its reverse (221002244), we get a palindrome (4643003464).

The spelling of 4422001220 in words is "four billion, four hundred twenty-two million, one thousand, two hundred twenty".