11212200221211 has 48 divisors (see below), whose sum is σ = 18707514433920. Its totient is φ = 6395370428160.

The previous prime is 11212200221203. The next prime is 11212200221231.

11212200221211 is a `hidden beast` number, since 1 + 1 + 212 + 20 + 0 + 221 + 211 = 666.

11212200221211 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 11212200221211 - 2³ = 11212200221203 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11212200221231) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 79641600 + ... + 79782258.

It is an arithmetic number, because the mean of its divisors is an integer number (389739884040).

Almost surely, 2^{11212200221211} is an apocalyptic number.

11212200221211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11212200221211 is a deficient number, since it is larger than the sum of its proper divisors (7495314212709).

11212200221211 is a wasteful number, since it uses less digits than its factorization.

11212200221211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188056 (or 188053 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

It can be divided in two parts, 11212200 and 221211, that added together give a palindrome (11433411).

The spelling of 11212200221211 in words is "eleven trillion, two hundred twelve billion, two hundred million, two hundred twenty-one thousand, two hundred eleven".