2228221144 has 64 divisors (see below), whose sum is σ = 4537784160. Its totient is φ = 1021870080.

The previous prime is 2228221133. The next prime is 2228221183. The reversal of 2228221144 is 4411228222.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 882604 + ... + 885124.

Almost surely, 2^2228221144 is an apocalyptic number.

It is an amenable number.

2228221144 is an abundant number, since it is smaller than the sum of its proper divisors (2309563016).

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

2228221144 is a wasteful number, since it uses less digits than its factorization.

2228221144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2708 (or 2704 counting only the distinct ones).

The product of its digits is 4096, while the sum is 28.

The square root of 2228221144 is about 47204.0373696996. The cubic root of 2228221144 is about 1306.1290745745.

Adding to 2228221144 its reverse (4411228222), we get a palindrome (6639449366).

The spelling of 2228221144 in words is "two billion, two hundred twenty-eight million, two hundred twenty-one thousand, one hundred forty-four".