11100221120111 has 4 divisors (see below), whose sum is σ = 11100228211800. Its totient is φ = 11100214028424.

The previous prime is 11100221120071. The next prime is 11100221120119. The reversal of 11100221120111 is 11102112200111.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11100221120111 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 (11100221120119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47456 + ... + 4711973.

It is an arithmetic number, because the mean of its divisors is an integer number (2775057052950).

Almost surely, 2^{11100221120111} is an apocalyptic number.

11100221120111 is a deficient number, since it is larger than the sum of its proper divisors (7091689).

11100221120111 is an equidigital number, since it uses as much as digits as its factorization.

11100221120111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7091688.

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

Adding to 11100221120111 its reverse (11102112200111), we get a palindrome (22202333320222).

The spelling of 11100221120111 in words is "eleven trillion, one hundred billion, two hundred twenty-one million, one hundred twenty thousand, one hundred eleven".