112001021 has 8 divisors (see below), whose sum is σ = 123393888. Its totient is φ = 100810000.

The previous prime is 112001017. The next prime is 112001023. The reversal of 112001021 is 120100211.

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 112001021 - 2² = 112001017 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112001023) 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, 49295 + ... + 51516.

It is an arithmetic number, because the mean of its divisors is an integer number (15424236).

Almost surely, 2^112001021 is an apocalyptic number.

112001021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

112001021 is a deficient number, since it is larger than the sum of its proper divisors (11392867).

112001021 is a wasteful number, since it uses less digits than its factorization.

112001021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100923.

The product of its (nonzero) digits is 4, while the sum is 8.

The square root of 112001021 is about 10583.0534818643. The cubic root of 112001021 is about 482.0299175659.

Adding to 112001021 its reverse (120100211), we get a palindrome (232101232).

It can be divided in two parts, 11200 and 1021, that added together give a palindrome (12221).

The spelling of 112001021 in words is "one hundred twelve million, one thousand, twenty-one".