11220021101111 has 16 divisors (see below), whose sum is σ = 11258635403520. Its totient is φ = 11181493445760.

The previous prime is 11220021100987. The next prime is 11220021101153. The reversal of 11220021101111 is 11110112002211.

It is a cyclic number.

It is not a de Polignac number, because 11220021101111 - 2²² = 11220016906807 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 (11220021101171) 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 15 ways as a sum of consecutive naturals, for example, 820110191 + ... + 820123871.

It is an arithmetic number, because the mean of its divisors is an integer number (703664712720).

Almost surely, 2^{11220021101111} is an apocalyptic number.

11220021101111 is a deficient number, since it is larger than the sum of its proper divisors (38614302409).

11220021101111 is a wasteful number, since it uses less digits than its factorization.

11220021101111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16646.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 11220021101111 its reverse (11110112002211), we get a palindrome (22330133103322).

The spelling of 11220021101111 in words is "eleven trillion, two hundred twenty billion, twenty-one million, one hundred one thousand, one hundred eleven".