11100221200111 has 4 divisors (see below), whose sum is σ = 11100302146872. Its totient is φ = 11100140253352.

The previous prime is 11100221200051. The next prime is 11100221200157. The reversal of 11100221200111 is 11100212200111.

It is a happy number.

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 11100221200111 - 2¹⁹ = 11100220675823 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11100221200091 and 11100221200100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11100221200181) 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, 40267336 + ... + 40542061.

It is an arithmetic number, because the mean of its divisors is an integer number (2775075536718).

Almost surely, 2^{11100221200111} is an apocalyptic number.

11100221200111 is a deficient number, since it is larger than the sum of its proper divisors (80946761).

11100221200111 is an equidigital number, since it uses as much as digits as its factorization.

11100221200111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80946760.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 11100221200111 its reverse (11100212200111), we get a palindrome (22200433400222).

Subtracting from 11100221200111 its reverse (11100212200111), we obtain a square (9000000 = 3000²).

The spelling of 11100221200111 in words is "eleven trillion, one hundred billion, two hundred twenty-one million, two hundred thousand, one hundred eleven".