12201203311 has 6 divisors (see below), whose sum is σ = 13411240136. Its totient is φ = 11092002900.

The previous prime is 12201203291. The next prime is 12201203383. The reversal of 12201203311 is 11330210221.

It is not a de Polignac number, because 12201203311 - 2¹¹ = 12201201263 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 (12201200311) 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 5 ways as a sum of consecutive naturals, for example, 50418075 + ... + 50418316.

Almost surely, 2^12201203311 is an apocalyptic number.

12201203311 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12201203311 is a deficient number, since it is larger than the sum of its proper divisors (1210036825).

12201203311 is a wasteful number, since it uses less digits than its factorization.

12201203311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100836413 (or 100836402 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 12201203311 its reverse (11330210221), we get a palindrome (23531413532).

It can be divided in two parts, 12201 and 203311, that added together give a palindrome (215512).

The spelling of 12201203311 in words is "twelve billion, two hundred one million, two hundred three thousand, three hundred eleven".