2221120244 has 24 divisors (see below), whose sum is σ = 4703549760. Its totient is φ = 895913856.

The previous prime is 2221120241. The next prime is 2221120267. The reversal of 2221120244 is 4420211222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221120241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2332634 + ... + 2333585.

It is an arithmetic number, because the mean of its divisors is an integer number (195981240).

Almost surely, 2^2221120244 is an apocalyptic number.

It is an amenable number.

2221120244 is an abundant number, since it is smaller than the sum of its proper divisors (2482429516).

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

2221120244 is a wasteful number, since it uses less digits than its factorization.

2221120244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4666247 (or 4666245 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 2221120244 is about 47128.7623856176. The cubic root of 2221120244 is about 1304.7401397803.

Adding to 2221120244 its reverse (4420211222), we get a palindrome (6641331466).

The spelling of 2221120244 in words is "two billion, two hundred twenty-one million, one hundred twenty thousand, two hundred forty-four".