2221000220 has 12 divisors (see below), whose sum is σ = 4664100504. Its totient is φ = 888400080.

The previous prime is 2221000213. The next prime is 2221000273. The reversal of 2221000220 is 220001222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55524986 + ... + 55525025.

It is an arithmetic number, because the mean of its divisors is an integer number (388675042).

Almost surely, 2^2221000220 is an apocalyptic number.

2221000220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2221000220 is an abundant number, since it is smaller than the sum of its proper divisors (2443100284).

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

2221000220 is a wasteful number, since it uses less digits than its factorization.

2221000220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111050020 (or 111050018 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 2221000220 is about 47127.4890058870. The cubic root of 2221000220 is about 1304.7166376831.

Adding to 2221000220 its reverse (220001222), we get a palindrome (2441001442).

The spelling of 2221000220 in words is "two billion, two hundred twenty-one million, two hundred twenty", and thus it is an aban number.