2218000020 has 48 divisors (see below), whose sum is σ = 6215989248. Its totient is φ = 590934400.

The previous prime is 2218000003. The next prime is 2218000079. The reversal of 2218000020 is 200008122.

2218000020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent 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, 53002 + ... + 85118.

It is an arithmetic number, because the mean of its divisors is an integer number (129499776).

Almost surely, 2^2218000020 is an apocalyptic number.

2218000020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2218000020 is an abundant number, since it is smaller than the sum of its proper divisors (3997989228).

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

2218000020 is a wasteful number, since it uses less digits than its factorization.

2218000020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33280 (or 33278 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 2218000020 is about 47095.6475696003. The cubic root of 2218000020 is about 1304.1288882664.

Adding to 2218000020 its reverse (200008122), we get a palindrome (2418008142).

The spelling of 2218000020 in words is "two billion, two hundred eighteen million, twenty", and thus it is an aban number.