11022111221211 has 6 divisors (see below), whose sum is σ = 15920827319540. Its totient is φ = 7348074147468.

The previous prime is 11022111221189. The next prime is 11022111221243. The reversal of 11022111221211 is 11212211122011.

It is a happy number.

11022111221211 is a `hidden beast` number, since 1 + 1 + 0 + 221 + 11 + 221 + 211 = 666.

It is not a de Polignac number, because 11022111221211 - 2¹⁰ = 11022111220187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11022111221281) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 612339512281 + ... + 612339512298.

Almost surely, 2^{11022111221211} is an apocalyptic number.

11022111221211 is a deficient number, since it is larger than the sum of its proper divisors (4898716098329).

11022111221211 is a wasteful number, since it uses less digits than its factorization.

11022111221211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1224679024585 (or 1224679024582 counting only the distinct ones).

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

Adding to 11022111221211 its reverse (11212211122011), we get a palindrome (22234322343222).

The spelling of 11022111221211 in words is "eleven trillion, twenty-two billion, one hundred eleven million, two hundred twenty-one thousand, two hundred eleven".