12201020222221 has 32 divisors (see below), whose sum is σ = 13264817126400. Its totient is φ = 11194296960000.

The previous prime is 12201020222189. The next prime is 12201020222297. The reversal of 12201020222221 is 12222202010221.

It is not a de Polignac number, because 12201020222221 - 2⁵ = 12201020222189 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 (12201020232221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 46598571 + ... + 46859671.

It is an arithmetic number, because the mean of its divisors is an integer number (414525535200).

Almost surely, 2^{12201020222221} is an apocalyptic number.

It is an amenable number.

12201020222221 is a deficient number, since it is larger than the sum of its proper divisors (1063796904179).

12201020222221 is a wasteful number, since it uses less digits than its factorization.

12201020222221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262101.

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

Adding to 12201020222221 its reverse (12222202010221), we get a palindrome (24423222232442).

The spelling of 12201020222221 in words is "twelve trillion, two hundred one billion, twenty million, two hundred twenty-two thousand, two hundred twenty-one".