11221100222211 has 24 divisors (see below), whose sum is σ = 17684423128944. Its totient is φ = 6799632399360.

The previous prime is 11221100222207. The next prime is 11221100222221. The reversal of 11221100222211 is 11222200112211.

11221100222211 is a `hidden beast` number, since 1 + 1 + 221 + 10 + 0 + 222 + 211 = 666.

It is not a de Polignac number, because 11221100222211 - 2² = 11221100222207 is a prime.

It is a zygodrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (11221100222221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7965606 + ... + 9267851.

It is an arithmetic number, because the mean of its divisors is an integer number (736850963706).

Almost surely, 2^{11221100222211} is an apocalyptic number.

11221100222211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11221100222211 is a deficient number, since it is larger than the sum of its proper divisors (6463322906733).

11221100222211 is a wasteful number, since it uses less digits than its factorization.

11221100222211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17240051 (or 17240048 counting only the distinct ones).

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

Adding to 11221100222211 its reverse (11222200112211), we get a palindrome (22443300334422).

The spelling of 11221100222211 in words is "eleven trillion, two hundred twenty-one billion, one hundred million, two hundred twenty-two thousand, two hundred eleven".