112213581 has 16 divisors (see below), whose sum is σ = 153145344. Its totient is φ = 73052784.

The previous prime is 112213579. The next prime is 112213589. The reversal of 112213581 is 185312211.

It is not a de Polignac number, because 112213581 - 2¹ = 112213579 is a prime.

It is a super-2 number, since 2×112213581² = 25183775521687122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112213589) 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, 115560 + ... + 116526.

It is an arithmetic number, because the mean of its divisors is an integer number (9571584).

Almost surely, 2^112213581 is an apocalyptic number.

It is an amenable number.

112213581 is a deficient number, since it is larger than the sum of its proper divisors (40931763).

112213581 is an equidigital number, since it uses as much as digits as its factorization.

112213581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1840.

The product of its digits is 480, while the sum is 24.

The square root of 112213581 is about 10593.0911919043. The cubic root of 112213581 is about 482.3346633884.

Adding to 112213581 its reverse (185312211), we get a palindrome (297525792).

The spelling of 112213581 in words is "one hundred twelve million, two hundred thirteen thousand, five hundred eighty-one".