11221010111 has 8 divisors (see below), whose sum is σ = 11296897248. Its totient is φ = 11145276000.

The previous prime is 11221010081. The next prime is 11221010147. The reversal of 11221010111 is 11101012211.

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 11221010111 - 2²⁶ = 11153901247 is a prime.

It is a super-2 number, since 2×11221010111² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11221010092 and 11221010101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11221010711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110846 + ... + 186356.

It is an arithmetic number, because the mean of its divisors is an integer number (1412112156).

Almost surely, 2^11221010111 is an apocalyptic number.

11221010111 is a deficient number, since it is larger than the sum of its proper divisors (75887137).

11221010111 is an equidigital number, since it uses as much as digits as its factorization.

11221010111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76513.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 11221010111 its reverse (11101012211), we get a palindrome (22322022322).

It can be divided in two parts, 11 and 221010111, that added together give a palindrome (221010122).

The spelling of 11221010111 in words is "eleven billion, two hundred twenty-one million, ten thousand, one hundred eleven".