11222220101111 has 4 divisors (see below), whose sum is σ = 11882350695312. Its totient is φ = 10562089506912.

The previous prime is 11222220101107. The next prime is 11222220101137. The reversal of 11222220101111 is 11110102222211.

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 11222220101111 - 2² = 11222220101107 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 660130594183 = 11222220101111 / (1 + 1 + 2 + 2 + 2 + 2 + 2 + 0 + 1 + 0 + 1 + 1 + 1 + 1).

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 11222220101111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11222220103111) 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, 330065297075 + ... + 330065297108.

It is an arithmetic number, because the mean of its divisors is an integer number (2970587673828).

Almost surely, 2^{11222220101111} is an apocalyptic number.

11222220101111 is a deficient number, since it is larger than the sum of its proper divisors (660130594201).

11222220101111 is an equidigital number, since it uses as much as digits as its factorization.

11222220101111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660130594200.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 11222220101111 its reverse (11110102222211), we get a palindrome (22332322323322).

The spelling of 11222220101111 in words is "eleven trillion, two hundred twenty-two billion, two hundred twenty million, one hundred one thousand, one hundred eleven".