11212211111013 has 12 divisors (see below), whose sum is σ = 17667726599328. Its totient is φ = 6795279461160.

The previous prime is 11212211111009. The next prime is 11212211111041. The reversal of 11212211111013 is 31011111221211.

It is not a de Polignac number, because 11212211111013 - 2² = 11212211111009 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11212211111813) 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, 56627328745 + ... + 56627328942.

It is an arithmetic number, because the mean of its divisors is an integer number (1472310549944).

Almost surely, 2^{11212211111013} is an apocalyptic number.

It is an amenable number.

11212211111013 is a deficient number, since it is larger than the sum of its proper divisors (6455515488315).

11212211111013 is a wasteful number, since it uses less digits than its factorization.

11212211111013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113254657704 (or 113254657701 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 18.

Adding to 11212211111013 its reverse (31011111221211), we get a palindrome (42223322332224).

The spelling of 11212211111013 in words is "eleven trillion, two hundred twelve billion, two hundred eleven million, one hundred eleven thousand, thirteen".