12212102220201 has 24 divisors (see below), whose sum is σ = 19192444744200. Its totient is φ = 7437664152576.

The previous prime is 12212102220173. The next prime is 12212102220211. The reversal of 12212102220201 is 10202220121221.

It is a happy number.

12212102220201 is a `hidden beast` number, since 1 + 221 + 21 + 0 + 2 + 220 + 201 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 21076070976 + 12191026149225 = 145176^2 + 3491565^2 .

It is not a de Polignac number, because 12212102220201 - 2⁶ = 12212102220137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12212102220211) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 538014126 + ... + 538036823.

It is an arithmetic number, because the mean of its divisors is an integer number (799685197675).

Almost surely, 2^{12212102220201} is an apocalyptic number.

It is an amenable number.

12212102220201 is a deficient number, since it is larger than the sum of its proper divisors (6980342523999).

12212102220201 is a wasteful number, since it uses less digits than its factorization.

12212102220201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1076051065 (or 1076051062 counting only the distinct ones).

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

Adding to 12212102220201 its reverse (10202220121221), we get a palindrome (22414322341422).

The spelling of 12212102220201 in words is "twelve trillion, two hundred twelve billion, one hundred two million, two hundred twenty thousand, two hundred one".