111122210011 has 4 divisors (see below), whose sum is σ = 116970747400. Its totient is φ = 105273672624.

The previous prime is 111122210009. The next prime is 111122210039. The reversal of 111122210011 is 110012221111.

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: 110012221111 = 13 ⋅8462478547.

It is a cyclic number.

It is not a de Polignac number, because 111122210011 - 2¹ = 111122210009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111122209973 and 111122210000.

It is not an unprimeable number, because it can be changed into a prime (111122210041) 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, 2924268666 + ... + 2924268703.

It is an arithmetic number, because the mean of its divisors is an integer number (29242686850).

Almost surely, 2^111122210011 is an apocalyptic number.

111122210011 is a deficient number, since it is larger than the sum of its proper divisors (5848537389).

111122210011 is an equidigital number, since it uses as much as digits as its factorization.

111122210011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5848537388.

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

Adding to 111122210011 its reverse (110012221111), we get a palindrome (221134431122).

The spelling of 111122210011 in words is "one hundred eleven billion, one hundred twenty-two million, two hundred ten thousand, eleven".