11021002211121 has 32 divisors (see below), whose sum is σ = 17785141291008. Its totient is φ = 5926142956800.

The previous prime is 11021002211041. The next prime is 11021002211171. The reversal of 11021002211121 is 12111220012011.

It is a happy number.

It is not a de Polignac number, because 11021002211121 - 2⁹ = 11021002210609 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11021002211121.

It is not an unprimeable number, because it can be changed into a prime (11021002211171) 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 31 ways as a sum of consecutive naturals, for example, 1017555 + ... + 4803896.

It is an arithmetic number, because the mean of its divisors is an integer number (555785665344).

Almost surely, 2^{11021002211121} is an apocalyptic number.

It is an amenable number.

11021002211121 is a deficient number, since it is larger than the sum of its proper divisors (6764139079887).

11021002211121 is a wasteful number, since it uses less digits than its factorization.

11021002211121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5826781.

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

Adding to 11021002211121 its reverse (12111220012011), we get a palindrome (23132222223132).

The spelling of 11021002211121 in words is "eleven trillion, twenty-one billion, two million, two hundred eleven thousand, one hundred twenty-one".