11021321211 has 16 divisors (see below), whose sum is σ = 15206952960. Its totient is φ = 7091789600.

The previous prime is 11021321209. The next prime is 11021321231. The reversal of 11021321211 is 11212312011.

11021321211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 11021321211 - 2¹ = 11021321209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11021321231) 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 15 ways as a sum of consecutive naturals, for example, 258886 + ... + 298436.

It is an arithmetic number, because the mean of its divisors is an integer number (950434560).

Almost surely, 2^11021321211 is an apocalyptic number.

11021321211 is a deficient number, since it is larger than the sum of its proper divisors (4185631749).

11021321211 is a wasteful number, since it uses less digits than its factorization.

11021321211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42786.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 11021321211 its reverse (11212312011), we get a palindrome (22233633222).

The spelling of 11021321211 in words is "eleven billion, twenty-one million, three hundred twenty-one thousand, two hundred eleven".