2220000201221 has 24 divisors (see below), whose sum is σ = 2443347477312. Its totient is φ = 2015552246400.

The previous prime is 2220000201179. The next prime is 2220000201239. The reversal of 2220000201221 is 1221020000222.

It is not a de Polignac number, because 2220000201221 - 2¹⁸ = 2219999939077 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2220000201196 and 2220000201205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2220000201241) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 531479885 + ... + 531484061.

It is an arithmetic number, because the mean of its divisors is an integer number (101806144888).

Almost surely, 2^{2220000201221} is an apocalyptic number.

It is an amenable number.

2220000201221 is a deficient number, since it is larger than the sum of its proper divisors (223347276091).

2220000201221 is a wasteful number, since it uses less digits than its factorization.

2220000201221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8873 (or 8862 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 2220000201221 its reverse (1221020000222), we get a palindrome (3441020201443).

The spelling of 2220000201221 in words is "two trillion, two hundred twenty billion, two hundred one thousand, two hundred twenty-one".