11021110212211 has 4 divisors (see below), whose sum is σ = 12023029322424. Its totient is φ = 10019191102000.

The previous prime is 11021110212197. The next prime is 11021110212271. The reversal of 11021110212211 is 11221201112011.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11021110212211 - 2⁵ = 11021110212179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11021110212271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 500959555090 + ... + 500959555111.

It is an arithmetic number, because the mean of its divisors is an integer number (3005757330606).

Almost surely, 2^{11021110212211} is an apocalyptic number.

11021110212211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11021110212211 is a deficient number, since it is larger than the sum of its proper divisors (1001919110213).

11021110212211 is a wasteful number, since it uses less digits than its factorization.

11021110212211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1001919110212.

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

Adding to 11021110212211 its reverse (11221201112011), we get a palindrome (22242311324222).

The spelling of 11021110212211 in words is "eleven trillion, twenty-one billion, one hundred ten million, two hundred twelve thousand, two hundred eleven".