11221111000111 has 4 divisors (see below), whose sum is σ = 11251194407992. Its totient is φ = 11191027592232.

The previous prime is 11221111000097. The next prime is 11221111000147. The reversal of 11221111000111 is 11100011112211.

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

It is a cyclic number.

It is not a de Polignac number, because 11221111000111 - 2⁹ = 11221110999599 is a prime.

It is a Duffinian number.

It is a zygodrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 11221111000091 and 11221111000100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11221111000181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15041703381 + ... + 15041704126.

It is an arithmetic number, because the mean of its divisors is an integer number (2812798601998).

Almost surely, 2^{11221111000111} is an apocalyptic number.

11221111000111 is a deficient number, since it is larger than the sum of its proper divisors (30083407881).

11221111000111 is an equidigital number, since it uses as much as digits as its factorization.

11221111000111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30083407880.

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 11221111000111 its reverse (11100011112211), we get a palindrome (22321122112322).

The spelling of 11221111000111 in words is "eleven trillion, two hundred twenty-one billion, one hundred eleven million, one hundred eleven", and thus it is an aban number.