112127021 has 8 divisors (see below), whose sum is σ = 116368920. Its totient is φ = 107910208.

The previous prime is 112127011. The next prime is 112127023. The reversal of 112127021 is 120721211.

It can be written as a sum of positive squares in 4 ways, for example, as 6325225 + 105801796 = 2515^2 + 10286^2 .

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 112127021 - 2²² = 107932717 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 (112127023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3095 + ... + 15291.

It is an arithmetic number, because the mean of its divisors is an integer number (14546115).

Almost surely, 2^112127021 is an apocalyptic number.

It is an amenable number.

112127021 is a deficient number, since it is larger than the sum of its proper divisors (4241899).

112127021 is a wasteful number, since it uses less digits than its factorization.

112127021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12543.

The product of its (nonzero) digits is 56, while the sum is 17.

The square root of 112127021 is about 10589.0047218801. The cubic root of 112127021 is about 482.2106093952.

Adding to 112127021 its reverse (120721211), we get a palindrome (232848232).

The spelling of 112127021 in words is "one hundred twelve million, one hundred twenty-seven thousand, twenty-one".