1112220001 has 4 divisors (see below), whose sum is σ = 1113908400. Its totient is φ = 1110531604.

The previous prime is 1112219987. The next prime is 1112220017. The reversal of 1112220001 is 1000222111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1112220001 - 2⁷ = 1112219873 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1112220001.

It is not an unprimeable number, because it can be changed into a prime (1112220071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 843211 + ... + 844528.

It is an arithmetic number, because the mean of its divisors is an integer number (278477100).

Almost surely, 2^1112220001 is an apocalyptic number.

It is an amenable number.

1112220001 is a deficient number, since it is larger than the sum of its proper divisors (1688399).

1112220001 is an equidigital number, since it uses as much as digits as its factorization.

1112220001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1688398.

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 1112220001 is about 33349.9625337121. The cubic root of 1112220001 is about 1036.0886119626.

Adding to 1112220001 its reverse (1000222111), we get a palindrome (2112442112).

The spelling of 1112220001 in words is "one billion, one hundred twelve million, two hundred twenty thousand, one".