2201028220 has 12 divisors (see below), whose sum is σ = 4622159304. Its totient is φ = 880411280.

The previous prime is 2201028173. The next prime is 2201028227. The reversal of 2201028220 is 228201022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2201028227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55025686 + ... + 55025725.

It is an arithmetic number, because the mean of its divisors is an integer number (385179942).

Almost surely, 2^2201028220 is an apocalyptic number.

2201028220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2201028220 is an abundant number, since it is smaller than the sum of its proper divisors (2421131084).

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

2201028220 is a wasteful number, since it uses less digits than its factorization.

2201028220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110051420 (or 110051418 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 2201028220 is about 46915.1171798601. The cubic root of 2201028220 is about 1300.7940356170.

Adding to 2201028220 its reverse (228201022), we get a palindrome (2429229242).

The spelling of 2201028220 in words is "two billion, two hundred one million, twenty-eight thousand, two hundred twenty".