11201212112013 has 48 divisors (see below), whose sum is σ = 20175395760000. Its totient is φ = 5817797274240.

The previous prime is 11201212111961. The next prime is 11201212112017. The reversal of 11201212112013 is 31021121210211.

It is a happy number.

It is not a de Polignac number, because 11201212112013 - 2⁶ = 11201212111949 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11201212112017) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2578303 + ... + 5389811.

It is an arithmetic number, because the mean of its divisors is an integer number (420320745000).

Almost surely, 2^{11201212112013} is an apocalyptic number.

It is an amenable number.

11201212112013 is a deficient number, since it is larger than the sum of its proper divisors (8974183647987).

11201212112013 is a wasteful number, since it uses less digits than its factorization.

11201212112013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2817282 (or 2817279 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

Adding to 11201212112013 its reverse (31021121210211), we get a palindrome (42222333322224).

The spelling of 11201212112013 in words is "eleven trillion, two hundred one billion, two hundred twelve million, one hundred twelve thousand, thirteen".