11100220212111 has 32 divisors (see below), whose sum is σ = 15425303040000. Its totient is φ = 7096097000928.

The previous prime is 11100220212101. The next prime is 11100220212161. The reversal of 11100220212111 is 11121202200111.

It is a happy number.

11100220212111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11100220212111 - 2¹⁵ = 11100220179343 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11100220212101) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3621561 + ... + 5942738.

It is an arithmetic number, because the mean of its divisors is an integer number (482040720000).

Almost surely, 2^{11100220212111} is an apocalyptic number.

11100220212111 is a deficient number, since it is larger than the sum of its proper divisors (4325082827889).

11100220212111 is an equidigital number, since it uses as much as digits as its factorization.

11100220212111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9564523.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 11100220212111 its reverse (11121202200111), we get a palindrome (22221422412222).

The spelling of 11100220212111 in words is "eleven trillion, one hundred billion, two hundred twenty million, two hundred twelve thousand, one hundred eleven".