11022111211 has 8 divisors (see below), whose sum is σ = 11710306944. Its totient is φ = 10338341760.

The previous prime is 11022111209. The next prime is 11022111227. The reversal of 11022111211 is 11211122011.

It is a happy number.

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 11022111211 - 2¹ = 11022111209 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11022111191 and 11022111200.

It is not an unprimeable number, because it can be changed into a prime (11022111011) 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, 1101435 + ... + 1111396.

It is an arithmetic number, because the mean of its divisors is an integer number (1463788368).

Almost surely, 2^11022111211 is an apocalyptic number.

11022111211 is a deficient number, since it is larger than the sum of its proper divisors (688195733).

11022111211 is a wasteful number, since it uses less digits than its factorization.

11022111211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2213141.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 11022111211 its reverse (11211122011), we get a palindrome (22233233222).

The spelling of 11022111211 in words is "eleven billion, twenty-two million, one hundred eleven thousand, two hundred eleven".