12201212220201 has 12 divisors (see below), whose sum is σ = 18231696421380. Its totient is φ = 7853653842720.

The previous prime is 12201212220097. The next prime is 12201212220227. The reversal of 12201212220201 is 10202221210221.

It is a happy number.

12201212220201 is a `hidden beast` number, since 1 + 220 + 1 + 21 + 2 + 220 + 201 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 5732557564176 + 6468654656025 = 2394276^2 + 2543355^2 .

It is not a de Polignac number, because 12201212220201 - 2⁹ = 12201212219689 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12201212220271) 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, 23373969510 + ... + 23373970031.

It is an arithmetic number, because the mean of its divisors is an integer number (1519308035115).

Almost surely, 2^{12201212220201} is an apocalyptic number.

It is an amenable number.

12201212220201 is a deficient number, since it is larger than the sum of its proper divisors (6030484201179).

12201212220201 is a wasteful number, since it uses less digits than its factorization.

12201212220201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46747939576 (or 46747939573 counting only the distinct ones).

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

Adding to 12201212220201 its reverse (10202221210221), we get a palindrome (22403433430422).

The spelling of 12201212220201 in words is "twelve trillion, two hundred one billion, two hundred twelve million, two hundred twenty thousand, two hundred one".