112216031 has 4 divisors (see below), whose sum is σ = 118816992. Its totient is φ = 105615072.

The previous prime is 112216021. The next prime is 112216037. The reversal of 112216031 is 130612211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 130612211 = 229 ⋅570359.

It is a cyclic number.

It is not a de Polignac number, because 112216031 - 2⁶ = 112215967 is a prime.

It is a super-2 number, since 2×112216031² = 25184875226785922, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 6600943 = 112216031 / (1 + 1 + 2 + 2 + 1 + 6 + 0 + 3 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112216037) 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, 3300455 + ... + 3300488.

It is an arithmetic number, because the mean of its divisors is an integer number (29704248).

Almost surely, 2^112216031 is an apocalyptic number.

112216031 is a deficient number, since it is larger than the sum of its proper divisors (6600961).

112216031 is an equidigital number, since it uses as much as digits as its factorization.

112216031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6600960.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 112216031 is about 10593.2068326829. The cubic root of 112216031 is about 482.3381736923.

Adding to 112216031 its reverse (130612211), we get a palindrome (242828242).

The spelling of 112216031 in words is "one hundred twelve million, two hundred sixteen thousand, thirty-one".