11210220202111 has 4 divisors (see below), whose sum is σ = 12811680230992. Its totient is φ = 9608760173232.

The previous prime is 11210220202099. The next prime is 11210220202133. The reversal of 11210220202111 is 11120202201211.

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 11210220202111 - 2⁹ = 11210220201599 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 (11210220200111) 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, 800730014430 + ... + 800730014443.

It is an arithmetic number, because the mean of its divisors is an integer number (3202920057748).

Almost surely, 2^{11210220202111} is an apocalyptic number.

11210220202111 is a deficient number, since it is larger than the sum of its proper divisors (1601460028881).

11210220202111 is an equidigital number, since it uses as much as digits as its factorization.

11210220202111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1601460028880.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 11210220202111 its reverse (11120202201211), we get a palindrome (22330422403322).

Subtracting from 11210220202111 its reverse (11120202201211), we obtain a square (90018000900 = 300030²).

The spelling of 11210220202111 in words is "eleven trillion, two hundred ten billion, two hundred twenty million, two hundred two thousand, one hundred eleven".