11221011122211 has 24 divisors (see below), whose sum is σ = 17681698944000. Its totient is φ = 6800572162800.

The previous prime is 11221011122159. The next prime is 11221011122257. The reversal of 11221011122211 is 11222111012211.

It is a happy number.

11221011122211 is a `hidden beast` number, since 112 + 210 + 11 + 122 + 211 = 666.

It is not a de Polignac number, because 11221011122211 - 2¹⁴ = 11221011105827 is a prime.

It is a super-2 number, since 2×11221011122211² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11221011121211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29710246 + ... + 30085556.

It is an arithmetic number, because the mean of its divisors is an integer number (736737456000).

Almost surely, 2^{11221011122211} is an apocalyptic number.

11221011122211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11221011122211 is a deficient number, since it is larger than the sum of its proper divisors (6460687821789).

11221011122211 is a wasteful number, since it uses less digits than its factorization.

11221011122211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 677327 (or 677324 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 11221011122211 its reverse (11222111012211), we get a palindrome (22443122134422).

The spelling of 11221011122211 in words is "eleven trillion, two hundred twenty-one billion, eleven million, one hundred twenty-two thousand, two hundred eleven".