11212020211 has 12 divisors (see below), whose sum is σ = 13045194192. Its totient is φ = 9608357808.

The previous prime is 11212020191. The next prime is 11212020229. The reversal of 11212020211 is 11202021211.

It is not a de Polignac number, because 11212020211 - 2⁵ = 11212020179 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11212020191 and 11212020200.

It is not an unprimeable number, because it can be changed into a prime (11212320211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 255181 + ... + 295873.

It is an arithmetic number, because the mean of its divisors is an integer number (1087099516).

Almost surely, 2^11212020211 is an apocalyptic number.

11212020211 is a deficient number, since it is larger than the sum of its proper divisors (1833173981).

11212020211 is an equidigital number, since it uses as much as digits as its factorization.

11212020211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46330 (or 46323 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 11212020211 its reverse (11202021211), we get a palindrome (22414041422).

The spelling of 11212020211 in words is "eleven billion, two hundred twelve million, twenty thousand, two hundred eleven".