12201000001206 has 48 divisors (see below), whose sum is σ = 25795704599280. Its totient is φ = 3846464005120.

The previous prime is 12201000001189. The next prime is 12201000001241. The reversal of 12201000001206 is 60210000010221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21313275 + ... + 21878246.

It is an arithmetic number, because the mean of its divisors is an integer number (537410512485).

Almost surely, 2^{12201000001206} is an apocalyptic number.

12201000001206 is an abundant number, since it is smaller than the sum of its proper divisors (13594704598074).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12201000001206 is a wasteful number, since it uses less digits than its factorization.

12201000001206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43191661 (or 43191638 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 12201000001206 its reverse (60210000010221), we get a palindrome (72411000011427).

The spelling of 12201000001206 in words is "twelve trillion, two hundred one billion, one thousand, two hundred six".