12122201020221 has 48 divisors (see below), whose sum is σ = 17932633804800. Its totient is φ = 7887310485504.

The previous prime is 12122201020217. The next prime is 12122201020253. The reversal of 12122201020221 is 12202010222121.

It is a happy number.

12122201020221 is a `hidden beast` number, since 1 + 212 + 220 + 10 + 2 + 0 + 221 = 666.

It is not a de Polignac number, because 12122201020221 - 2² = 12122201020217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12122201020194 and 12122201020203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12122201020201) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1148039140 + ... + 1148049698.

It is an arithmetic number, because the mean of its divisors is an integer number (373596537600).

Almost surely, 2^{12122201020221} is an apocalyptic number.

It is an amenable number.

12122201020221 is a deficient number, since it is larger than the sum of its proper divisors (5810432784579).

12122201020221 is a wasteful number, since it uses less digits than its factorization.

12122201020221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17978 (or 17975 counting only the distinct ones).

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

Adding to 12122201020221 its reverse (12202010222121), we get a palindrome (24324211242342).

The spelling of 12122201020221 in words is "twelve trillion, one hundred twenty-two billion, two hundred one million, twenty thousand, two hundred twenty-one".