11022121121211 has 8 divisors (see below), whose sum is σ = 16329068327760. Its totient is φ = 7348080747456.

The previous prime is 11022121121153. The next prime is 11022121121321. The reversal of 11022121121211 is 11212112122011.

It is a happy number.

11022121121211 is a `hidden beast` number, since 1 + 1 + 0 + 221 + 211 + 21 + 211 = 666.

11022121121211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11022121121211 - 2⁷ = 11022121121083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11022121141211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 204113354070 + ... + 204113354123.

It is an arithmetic number, because the mean of its divisors is an integer number (2041133540970).

Almost surely, 2^{11022121121211} is an apocalyptic number.

11022121121211 is a deficient number, since it is larger than the sum of its proper divisors (5306947206549).

11022121121211 is an equidigital number, since it uses as much as digits as its factorization.

11022121121211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408226708202 (or 408226708196 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 11022121121211 its reverse (11212112122011), we get a palindrome (22234233243222).

The spelling of 11022121121211 in words is "eleven trillion, twenty-two billion, one hundred twenty-one million, one hundred twenty-one thousand, two hundred eleven".