11212202020211 has 4 divisors (see below), whose sum is σ = 11699689064592. Its totient is φ = 10724714975832.

The previous prime is 11212202020171. The next prime is 11212202020231. The reversal of 11212202020211 is 11202020221211.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11212202020211 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11212202020211.

It is not an unprimeable number, because it can be changed into a prime (11212202020231) 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, 243743522156 + ... + 243743522201.

It is an arithmetic number, because the mean of its divisors is an integer number (2924922266148).

Almost surely, 2^{11212202020211} is an apocalyptic number.

11212202020211 is a deficient number, since it is larger than the sum of its proper divisors (487487044381).

11212202020211 is an equidigital number, since it uses as much as digits as its factorization.

11212202020211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487487044380.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 11212202020211 its reverse (11202020221211), we get a palindrome (22414222241422).

The spelling of 11212202020211 in words is "eleven trillion, two hundred twelve billion, two hundred two million, twenty thousand, two hundred eleven".