11220110111111 has 8 divisors (see below), whose sum is σ = 12662193229200. Its totient is φ = 9848372511040.

The previous prime is 11220110111107. The next prime is 11220110111113. The reversal of 11220110111111 is 11111101102211.

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 11220110111111 - 2² = 11220110111107 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 (11220110111113) 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, 17586379166 + ... + 17586379803.

It is an arithmetic number, because the mean of its divisors is an integer number (1582774153650).

Almost surely, 2^{11220110111111} is an apocalyptic number.

11220110111111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11220110111111 is a deficient number, since it is larger than the sum of its proper divisors (1442083118089).

11220110111111 is a wasteful number, since it uses less digits than its factorization.

11220110111111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35172759009.

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

Adding to 11220110111111 its reverse (11111101102211), we get a palindrome (22331211213322).

The spelling of 11220110111111 in words is "eleven trillion, two hundred twenty billion, one hundred ten million, one hundred eleven thousand, one hundred eleven".