4220001220 has 48 divisors (see below), whose sum is σ = 9062645760. Its totient is φ = 1649879424.

The previous prime is 4220001143. The next prime is 4220001221. The reversal of 4220001220 is 221000224.

4220001220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 4220001220.

It is not an unprimeable number, because it can be changed into a prime (4220001221) 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, 821821 + ... + 826939.

It is an arithmetic number, because the mean of its divisors is an integer number (188805120).

Almost surely, 2^4220001220 is an apocalyptic number.

It is an amenable number.

4220001220 is an abundant number, since it is smaller than the sum of its proper divisors (4842644540).

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

4220001220 is a wasteful number, since it uses less digits than its factorization.

4220001220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6052 (or 6050 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 4220001220 is about 64961.5364658195. The cubic root of 4220001220 is about 1615.9857452464.

Adding to 4220001220 its reverse (221000224), we get a palindrome (4441001444).

The spelling of 4220001220 in words is "four billion, two hundred twenty million, one thousand, two hundred twenty".