12220120202221 has 8 divisors (see below), whose sum is σ = 12648296568600. Its totient is φ = 11792396696640.

The previous prime is 12220120202219. The next prime is 12220120202237. The reversal of 12220120202221 is 12220202102221.

It can be written as a sum of positive squares in 4 ways, for example, as 1246728564900 + 10973391637321 = 1116570^2 + 3312611^2 .

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 12220120202221 - 2¹ = 12220120202219 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12220120202201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113160286 + ... + 113268223.

It is an arithmetic number, because the mean of its divisors is an integer number (1581037071075).

Almost surely, 2^{12220120202221} is an apocalyptic number.

It is an amenable number.

12220120202221 is a deficient number, since it is larger than the sum of its proper divisors (428176366379).

12220120202221 is a wasteful number, since it uses less digits than its factorization.

12220120202221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226430399.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 12220120202221 its reverse (12220202102221), we get a palindrome (24440322304442).

The spelling of 12220120202221 in words is "twelve trillion, two hundred twenty billion, one hundred twenty million, two hundred two thousand, two hundred twenty-one".