11213201205 has 24 divisors (see below), whose sum is σ = 19458196992. Its totient is φ = 5973610464.

The previous prime is 11213201183. The next prime is 11213201227. The reversal of 11213201205 is 50210231211.

It is an interprime number because it is at equal distance from previous prime (11213201183) and next prime (11213201227).

It is not a de Polignac number, because 11213201205 - 2²⁵ = 11179646773 is a prime.

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, 100549 + ... + 180378.

It is an arithmetic number, because the mean of its divisors is an integer number (810758208).

Almost surely, 2^11213201205 is an apocalyptic number.

11213201205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11213201205 is a deficient number, since it is larger than the sum of its proper divisors (8244995787).

11213201205 is a wasteful number, since it uses less digits than its factorization.

11213201205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281825 (or 281822 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

Adding to 11213201205 its reverse (50210231211), we get a palindrome (61423432416).

The spelling of 11213201205 in words is "eleven billion, two hundred thirteen million, two hundred one thousand, two hundred five".