11213222011 has 4 divisors (see below), whose sum is σ = 11214925792. Its totient is φ = 11211518232.

The previous prime is 11213221997. The next prime is 11213222017. The reversal of 11213222011 is 11022231211.

11213222011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11022231211 = 10271 ⋅1073141.

It is a cyclic number.

It is not a de Polignac number, because 11213222011 - 2¹⁹ = 11212697723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11213222017) 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 3 ways as a sum of consecutive naturals, for example, 841980 + ... + 855193.

It is an arithmetic number, because the mean of its divisors is an integer number (2803731448).

Almost surely, 2^11213222011 is an apocalyptic number.

11213222011 is a deficient number, since it is larger than the sum of its proper divisors (1703781).

11213222011 is an equidigital number, since it uses as much as digits as its factorization.

11213222011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1703780.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 11213222011 its reverse (11022231211), we get a palindrome (22235453222).

The spelling of 11213222011 in words is "eleven billion, two hundred thirteen million, two hundred twenty-two thousand, eleven".