11221100221011 has 32 divisors (see below), whose sum is σ = 16186185676800. Its totient is φ = 6887660706816.

The previous prime is 11221100220997. The next prime is 11221100221031. The reversal of 11221100221011 is 11012200112211.

It is a happy number.

It is not a de Polignac number, because 11221100221011 - 2¹⁷ = 11221100089939 is a prime.

It is a super-2 number, since 2×11221100221011² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11221100221031) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4027090 + ... + 6217688.

It is an arithmetic number, because the mean of its divisors is an integer number (505818302400).

Almost surely, 2^{11221100221011} is an apocalyptic number.

11221100221011 is a deficient number, since it is larger than the sum of its proper divisors (4965085455789).

11221100221011 is a wasteful number, since it uses less digits than its factorization.

11221100221011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2192803.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 11221100221011 its reverse (11012200112211), we get a palindrome (22233300333222).

The spelling of 11221100221011 in words is "eleven trillion, two hundred twenty-one billion, one hundred million, two hundred twenty-one thousand, eleven".