2221103221 has 16 divisors (see below), whose sum is σ = 2323915776. Its totient is φ = 2120400000.

The previous prime is 2221103219. The next prime is 2221103233. The reversal of 2221103221 is 1223011222.

It is a happy number.

It is not a de Polignac number, because 2221103221 - 2¹ = 2221103219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2221103195 and 2221103204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221103281) 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, 972601 + ... + 974881.

It is an arithmetic number, because the mean of its divisors is an integer number (145244736).

Almost surely, 2^2221103221 is an apocalyptic number.

It is an amenable number.

2221103221 is a deficient number, since it is larger than the sum of its proper divisors (102812555).

2221103221 is a wasteful number, since it uses less digits than its factorization.

2221103221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2724.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 2221103221 is about 47128.5817843058. The cubic root of 2221103221 is about 1304.7368065302.

Adding to 2221103221 its reverse (1223011222), we get a palindrome (3444114443).

The spelling of 2221103221 in words is "two billion, two hundred twenty-one million, one hundred three thousand, two hundred twenty-one".