11214440111 has 4 divisors (see below), whose sum is σ = 12816502992. Its totient is φ = 9612377232.

The previous prime is 11214440093. The next prime is 11214440137. The reversal of 11214440111 is 11104441211.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11214440111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11214440411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 801031430 + ... + 801031443.

It is an arithmetic number, because the mean of its divisors is an integer number (3204125748).

Almost surely, 2^11214440111 is an apocalyptic number.

11214440111 is a deficient number, since it is larger than the sum of its proper divisors (1602062881).

11214440111 is an equidigital number, since it uses as much as digits as its factorization.

11214440111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1602062880.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 11214440111 its reverse (11104441211), we get a palindrome (22318881322).

The spelling of 11214440111 in words is "eleven billion, two hundred fourteen million, four hundred forty thousand, one hundred eleven".