11120020211 has 4 divisors (see below), whose sum is σ = 11122902672. Its totient is φ = 11117137752.

The previous prime is 11120020189. The next prime is 11120020231. The reversal of 11120020211 is 11202002111.

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 11120020211 - 2²⁶ = 11052911347 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11120020192 and 11120020201.

It is not an unprimeable number, because it can be changed into a prime (11120020231) 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, 1435436 + ... + 1443161.

It is an arithmetic number, because the mean of its divisors is an integer number (2780725668).

Almost surely, 2^11120020211 is an apocalyptic number.

11120020211 is a deficient number, since it is larger than the sum of its proper divisors (2882461).

11120020211 is an equidigital number, since it uses as much as digits as its factorization.

11120020211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2882460.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 11120020211 its reverse (11202002111), we get a palindrome (22322022322).

The spelling of 11120020211 in words is "eleven billion, one hundred twenty million, twenty thousand, two hundred eleven".