11102211111 has 8 divisors (see below), whose sum is σ = 14804924544. Its totient is φ = 7400485880.

The previous prime is 11102211103. The next prime is 11102211139. The reversal of 11102211111 is 11111220111.

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 11102211111 - 2³ = 11102211103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11102211101) 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, 220425 + ... + 266066.

It is an arithmetic number, because the mean of its divisors is an integer number (1850615568).

Almost surely, 2^11102211111 is an apocalyptic number.

11102211111 is a deficient number, since it is larger than the sum of its proper divisors (3702713433).

11102211111 is an equidigital number, since it uses as much as digits as its factorization.

11102211111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494101.

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 11102211111 its reverse (11111220111), we get a palindrome (22213431222).

The spelling of 11102211111 in words is "eleven billion, one hundred two million, two hundred eleven thousand, one hundred eleven".