2220202011221 has 8 divisors (see below), whose sum is σ = 2316791393280. Its totient is φ = 2123617534192.

The previous prime is 2220202011169. The next prime is 2220202011229. The reversal of 2220202011221 is 1221102020222.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2220202011221 - 2¹⁴ = 2220201994837 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 2220202011221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2220202011229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 285941 + ... + 2126538.

It is an arithmetic number, because the mean of its divisors is an integer number (289598924160).

Almost surely, 2^{2220202011221} is an apocalyptic number.

It is an amenable number.

2220202011221 is a deficient number, since it is larger than the sum of its proper divisors (96589382059).

2220202011221 is a wasteful number, since it uses less digits than its factorization.

2220202011221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2452515.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 2220202011221 its reverse (1221102020222), we get a palindrome (3441304031443).

Subtracting from 2220202011221 its reverse (1221102020222), we obtain a palindrome (999099990999).

The spelling of 2220202011221 in words is "two trillion, two hundred twenty billion, two hundred two million, eleven thousand, two hundred twenty-one".