12020220112221 has 12 divisors (see below), whose sum is σ = 17372410872960. Its totient is φ = 8008924362120.

The previous prime is 12020220112193. The next prime is 12020220112237. The reversal of 12020220112221 is 12221102202021.

It is a happy number.

12020220112221 is a `hidden beast` number, since 120 + 202 + 201 + 122 + 21 = 666.

It is not a de Polignac number, because 12020220112221 - 2¹³ = 12020220104029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12020220112194 and 12020220112203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12020220113221) 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, 379626015 + ... + 379657676.

It is an arithmetic number, because the mean of its divisors is an integer number (1447700906080).

Almost surely, 2^{12020220112221} is an apocalyptic number.

It is an amenable number.

12020220112221 is a deficient number, since it is larger than the sum of its proper divisors (5352190760739).

12020220112221 is a wasteful number, since it uses less digits than its factorization.

12020220112221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 759285456 (or 759285453 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 12020220112221 its reverse (12221102202021), we get a palindrome (24241322314242).

The spelling of 12020220112221 in words is "twelve trillion, twenty billion, two hundred twenty million, one hundred twelve thousand, two hundred twenty-one".