2220144020 has 12 divisors (see below), whose sum is σ = 4662302484. Its totient is φ = 888057600.

The previous prime is 2220144013. The next prime is 2220144037. The reversal of 2220144020 is 204410222.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1282069636 + 938074384 = 35806^2 + 30628^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2220144020.

It is a congruent number.

It is an unprimeable number.

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, 55503581 + ... + 55503620.

It is an arithmetic number, because the mean of its divisors is an integer number (388525207).

Almost surely, 2^2220144020 is an apocalyptic number.

2220144020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2220144020 is an abundant number, since it is smaller than the sum of its proper divisors (2442158464).

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

2220144020 is a wasteful number, since it uses less digits than its factorization.

2220144020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111007210 (or 111007208 counting only the distinct ones).

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

The square root of 2220144020 is about 47118.4042599068. The cubic root of 2220144020 is about 1304.5489591820.

Adding to 2220144020 its reverse (204410222), we get a palindrome (2424554242).

The spelling of 2220144020 in words is "two billion, two hundred twenty million, one hundred forty-four thousand, twenty".