1112223581 has 16 divisors (see below), whose sum is σ = 1331472384. Its totient is φ = 908383344.

The previous prime is 1112223559. The next prime is 1112223583. The reversal of 1112223581 is 1853222111.

It is a de Polignac number, because none of the positive numbers 2^k-1112223581 is a prime.

It is a super-2 number, since 2×1112223581² = 2474082588264927122, which contains 22 as substring.

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 1112223581.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1112223583) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29210 + ... + 55476.

It is an arithmetic number, because the mean of its divisors is an integer number (83217024).

Almost surely, 2^1112223581 is an apocalyptic number.

It is an amenable number.

1112223581 is a deficient number, since it is larger than the sum of its proper divisors (219248803).

1112223581 is a wasteful number, since it uses less digits than its factorization.

1112223581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26560.

The product of its digits is 960, while the sum is 26.

The square root of 1112223581 is about 33350.0162068926. The cubic root of 1112223581 is about 1036.0897236112.

Adding to 1112223581 its reverse (1853222111), we get a palindrome (2965445692).

The spelling of 1112223581 in words is "one billion, one hundred twelve million, two hundred twenty-three thousand, five hundred eighty-one".