1112020221 has 8 divisors (see below), whose sum is σ = 1596747040. Its totient is φ = 684320112.

The previous prime is 1112020219. The next prime is 1112020223. The reversal of 1112020221 is 1220202111.

It is an interprime number because it is at equal distance from previous prime (1112020219) and next prime (1112020223).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1112020221 - 2¹ = 1112020219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1112020197 and 1112020206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1112020223) 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, 14256631 + ... + 14256708.

It is an arithmetic number, because the mean of its divisors is an integer number (199593380).

Almost surely, 2^1112020221 is an apocalyptic number.

It is an amenable number.

1112020221 is a deficient number, since it is larger than the sum of its proper divisors (484726819).

1112020221 is a wasteful number, since it uses less digits than its factorization.

1112020221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28513355.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 1112020221 is about 33346.9671934345. The cubic root of 1112020221 is about 1036.0265732241.

Adding to 1112020221 its reverse (1220202111), we get a palindrome (2332222332).

The spelling of 1112020221 in words is "one billion, one hundred twelve million, twenty thousand, two hundred twenty-one".