2222103221 has 16 divisors (see below), whose sum is σ = 2477608560. Its totient is φ = 1978798080.

The previous prime is 2222103203. The next prime is 2222103229. The reversal of 2222103221 is 1223012222.

It can be written as a sum of positive squares in 8 ways, for example, as 276058225 + 1946044996 = 16615^2 + 44114^2 .

It is a cyclic number.

It is not a de Polignac number, because 2222103221 - 2¹⁸ = 2221841077 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2222103221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2222103229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 805781 + ... + 808533.

It is an arithmetic number, because the mean of its divisors is an integer number (154850535).

Almost surely, 2^2222103221 is an apocalyptic number.

It is an amenable number.

2222103221 is a deficient number, since it is larger than the sum of its proper divisors (255505339).

2222103221 is a wasteful number, since it uses less digits than its factorization.

2222103221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4936.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 2222103221 is about 47139.1898636368. The cubic root of 2222103221 is about 1304.9325862721.

Adding to 2222103221 its reverse (1223012222), we get a palindrome (3445115443).

Subtracting from 2222103221 its reverse (1223012222), we obtain a palindrome (999090999).

The spelling of 2222103221 in words is "two billion, two hundred twenty-two million, one hundred three thousand, two hundred twenty-one".