11100111212111 has 8 divisors (see below), whose sum is σ = 11130160894944. Its totient is φ = 11070081872640.

The previous prime is 11100111212063. The next prime is 11100111212143. The reversal of 11100111212111 is 11121211100111.

11100111212111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 11100111212111 - 2²² = 11100107017807 is a prime.

It is a super-3 number, since 3×11100111212111³ (a number of 40 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11100111242111) 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, 3992771 + ... + 6175956.

It is an arithmetic number, because the mean of its divisors is an integer number (1391270111868).

Almost surely, 2^{11100111212111} is an apocalyptic number.

11100111212111 is a deficient number, since it is larger than the sum of its proper divisors (30049682833).

11100111212111 is a wasteful number, since it uses less digits than its factorization.

11100111212111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10171681.

The product of its (nonzero) digits is 4, while the sum is 14.

Adding to 11100111212111 its reverse (11121211100111), we get a palindrome (22221322312222).

The spelling of 11100111212111 in words is "eleven trillion, one hundred billion, one hundred eleven million, two hundred twelve thousand, one hundred eleven".