11202221021211 has 24 divisors (see below), whose sum is σ = 18129065311344. Its totient is φ = 6605732295360.

The previous prime is 11202221021207. The next prime is 11202221021213. The reversal of 11202221021211 is 11212012220211.

11202221021211 is a `hidden beast` number, since 11 + 202 + 221 + 0 + 21 + 211 = 666.

It is not a de Polignac number, because 11202221021211 - 2² = 11202221021207 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11202221021213) 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 23 ways as a sum of consecutive naturals, for example, 1529101036 + ... + 1529108361.

It is an arithmetic number, because the mean of its divisors is an integer number (755377721306).

Almost surely, 2^{11202221021211} is an apocalyptic number.

11202221021211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11202221021211 is a deficient number, since it is larger than the sum of its proper divisors (6926844290133).

11202221021211 is a wasteful number, since it uses less digits than its factorization.

11202221021211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3058209451 (or 3058209448 counting only the distinct ones).

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

Adding to 11202221021211 its reverse (11212012220211), we get a palindrome (22414233241422).

The spelling of 11202221021211 in words is "eleven trillion, two hundred two billion, two hundred twenty-one million, twenty-one thousand, two hundred eleven".