1112221211 has 8 divisors (see below), whose sum is σ = 1135696944. Its totient is φ = 1088968320.

The previous prime is 1112221199. The next prime is 1112221241. The reversal of 1112221211 is 1121222111.

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 1112221211 - 2¹⁸ = 1111959067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1112221241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45605 + ... + 65606.

It is an arithmetic number, because the mean of its divisors is an integer number (141962118).

Almost surely, 2^1112221211 is an apocalyptic number.

1112221211 is a deficient number, since it is larger than the sum of its proper divisors (23475733).

1112221211 is a wasteful number, since it uses less digits than its factorization.

1112221211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111421.

The product of its digits is 16, while the sum is 14.

The square root of 1112221211 is about 33349.9806746571. The cubic root of 1112221211 is about 1036.0889876877.

Adding to 1112221211 its reverse (1121222111), we get a palindrome (2233443322).

The spelling of 1112221211 in words is "one billion, one hundred twelve million, two hundred twenty-one thousand, two hundred eleven".