112196821 has 8 divisors (see below), whose sum is σ = 129596544. Its totient is φ = 95997120.

The previous prime is 112196809. The next prime is 112196831. The reversal of 112196821 is 128691211.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 112196821 - 2⁵ = 112196789 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112196831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 299805 + ... + 300178.

It is an arithmetic number, because the mean of its divisors is an integer number (16199568).

Almost surely, 2^112196821 is an apocalyptic number.

112196821 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

112196821 is a deficient number, since it is larger than the sum of its proper divisors (17399723).

112196821 is a wasteful number, since it uses less digits than its factorization.

112196821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600011.

The product of its digits is 1728, while the sum is 31.

The square root of 112196821 is about 10592.3000807190. The cubic root of 112196821 is about 482.3106486735.

The spelling of 112196821 in words is "one hundred twelve million, one hundred ninety-six thousand, eight hundred twenty-one".