2220103232221 has 12 divisors (see below), whose sum is σ = 2608139062620. Its totient is φ = 1884104577600.

The previous prime is 2220103232159. The next prime is 2220103232297. The reversal of 2220103232221 is 1222323010222.

It can be written as a sum of positive squares in 2 ways, for example, as 1350276536196 + 869826696025 = 1162014^2 + 932645^2 .

It is not a de Polignac number, because 2220103232221 - 2¹⁵ = 2220103199453 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2220103232192 and 2220103232201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2220103232521) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 224293216 + ... + 224303113.

It is an arithmetic number, because the mean of its divisors is an integer number (217344921885).

Almost surely, 2^{2220103232221} is an apocalyptic number.

It is an amenable number.

2220103232221 is a deficient number, since it is larger than the sum of its proper divisors (388035830399).

2220103232221 is a wasteful number, since it uses less digits than its factorization.

2220103232221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 448596444 (or 448596437 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 2220103232221 its reverse (1222323010222), we get a palindrome (3442426242443).

The spelling of 2220103232221 in words is "two trillion, two hundred twenty billion, one hundred three million, two hundred thirty-two thousand, two hundred twenty-one".