11021122021211 has 8 divisors (see below), whose sum is σ = 11146052388240. Its totient is φ = 10896216044032.

The previous prime is 11021122021207. The next prime is 11021122021237. The reversal of 11021122021211 is 11212022112011.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11021122021211 - 2² = 11021122021207 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11021122021211.

It is not an unprimeable number, because it can be changed into a prime (11021122021241) 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 7 ways as a sum of consecutive naturals, for example, 5187830 + ... + 6996843.

It is an arithmetic number, because the mean of its divisors is an integer number (1393256548530).

Almost surely, 2^{11021122021211} is an apocalyptic number.

11021122021211 is a deficient number, since it is larger than the sum of its proper divisors (124930367029).

11021122021211 is a wasteful number, since it uses less digits than its factorization.

11021122021211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12194925.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 11021122021211 its reverse (11212022112011), we get a palindrome (22233144133222).

The spelling of 11021122021211 in words is "eleven trillion, twenty-one billion, one hundred twenty-two million, twenty-one thousand, two hundred eleven".