11122101211 has 4 divisors (see below), whose sum is σ = 11977647472. Its totient is φ = 10266554952.

The previous prime is 11122101209. The next prime is 11122101217. The reversal of 11122101211 is 11210122111.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11210122111 = 103 ⋅108836137.

It is a cyclic number.

It is not a de Polignac number, because 11122101211 - 2¹ = 11122101209 is a prime.

It is a super-2 number, since 2×11122101211² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13), and also a Moran number because the ratio is a prime number: 855546247 = 11122101211 / (1 + 1 + 1 + 2 + 2 + 1 + 0 + 1 + 2 + 1 + 1).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11122101191 and 11122101200.

It is not an unprimeable number, because it can be changed into a prime (11122101217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 427773111 + ... + 427773136.

It is an arithmetic number, because the mean of its divisors is an integer number (2994411868).

Almost surely, 2^11122101211 is an apocalyptic number.

11122101211 is a deficient number, since it is larger than the sum of its proper divisors (855546261).

11122101211 is an equidigital number, since it uses as much as digits as its factorization.

11122101211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 855546260.

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

Adding to 11122101211 its reverse (11210122111), we get a palindrome (22332223322).

The spelling of 11122101211 in words is "eleven billion, one hundred twenty-two million, one hundred one thousand, two hundred eleven".