1112221011 has 16 divisors (see below), whose sum is σ = 1618606080. Its totient is φ = 673727520.

The previous prime is 1112220973. The next prime is 1112221027. The reversal of 1112221011 is 1101222111.

It is not a de Polignac number, because 1112221011 - 2⁶ = 1112220947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1112221081) 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 15 ways as a sum of consecutive naturals, for example, 66361 + ... + 81413.

It is an arithmetic number, because the mean of its divisors is an integer number (101162880).

Almost surely, 2^1112221011 is an apocalyptic number.

1112221011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1112221011 is a deficient number, since it is larger than the sum of its proper divisors (506385069).

1112221011 is a wasteful number, since it uses less digits than its factorization.

1112221011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17306.

The product of its (nonzero) digits is 8, while the sum is 12.

The square root of 1112221011 is about 33349.9776761544. The cubic root of 1112221011 is about 1036.0889255844.

Adding to 1112221011 its reverse (1101222111), we get a palindrome (2213443122).

The spelling of 1112221011 in words is "one billion, one hundred twelve million, two hundred twenty-one thousand, eleven".