11212101131111 has 8 divisors (see below), whose sum is σ = 11238889233264. Its totient is φ = 11185342070400.

The previous prime is 11212101131081. The next prime is 11212101131117. The reversal of 11212101131111 is 11113110121211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11212101131111 - 2²⁶ = 11212034022247 is a prime.

It is a super-2 number, since 2×11212101131111² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11212101131111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11212101131117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6487196 + ... + 8031681.

It is an arithmetic number, because the mean of its divisors is an integer number (1404861154158).

Almost surely, 2^{11212101131111} is an apocalyptic number.

11212101131111 is a deficient number, since it is larger than the sum of its proper divisors (26788102153).

11212101131111 is a wasteful number, since it uses less digits than its factorization.

11212101131111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14520721.

The product of its (nonzero) digits is 12, while the sum is 17.

Adding to 11212101131111 its reverse (11113110121211), we get a palindrome (22325211252322).

The spelling of 11212101131111 in words is "eleven trillion, two hundred twelve billion, one hundred one million, one hundred thirty-one thousand, one hundred eleven".