1111242211 has 4 divisors (see below), whose sum is σ = 1115892000. Its totient is φ = 1106592424.

The previous prime is 1111242199. The next prime is 1111242259. The reversal of 1111242211 is 1122421111.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1111242211 - 2¹⁷ = 1111111139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1111242611) 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, 2324536 + ... + 2325013.

It is an arithmetic number, because the mean of its divisors is an integer number (278973000).

Almost surely, 2^1111242211 is an apocalyptic number.

1111242211 is a deficient number, since it is larger than the sum of its proper divisors (4649789).

1111242211 is an equidigital number, since it uses as much as digits as its factorization.

1111242211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4649788.

The product of its digits is 32, while the sum is 16.

The square root of 1111242211 is about 33335.2997736634. The cubic root of 1111242211 is about 1035.7849028329.

Adding to 1111242211 its reverse (1122421111), we get a palindrome (2233663322).

The spelling of 1111242211 in words is "one billion, one hundred eleven million, two hundred forty-two thousand, two hundred eleven".