112216557 has 4 divisors (see below), whose sum is σ = 149622080. Its totient is φ = 74811036.

The previous prime is 112216553. The next prime is 112216583. The reversal of 112216557 is 755612211.

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 not a de Polignac number, because 112216557 - 2² = 112216553 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112216553) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18702757 + ... + 18702762.

It is an arithmetic number, because the mean of its divisors is an integer number (37405520).

Almost surely, 2^112216557 is an apocalyptic number.

It is an amenable number.

112216557 is a deficient number, since it is larger than the sum of its proper divisors (37405523).

112216557 is an equidigital number, since it uses as much as digits as its factorization.

112216557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37405522.

The product of its digits is 4200, while the sum is 30.

The square root of 112216557 is about 10593.2316598855. The cubic root of 112216557 is about 482.3389273264.

Adding to 112216557 its reverse (755612211), we get a palindrome (867828768).

The spelling of 112216557 in words is "one hundred twelve million, two hundred sixteen thousand, five hundred fifty-seven".